You took a grand look at the legend of Sun Wukong, The Monkey King, and wanted to wield the same epic abilities as him. Unfortunately I can't guarantee the near invulnerability to literally everything or being a monkey awakened from a stone in the heavenly realms, but I can get you using the tricks Master Puti taught Sun Wukong - The Seventy-Two Earthly Transformations!

Earthly Forms

3rd-level Way of the Seventy-Two Transformations feature

You gain the ability to transmute your body to nearly any earthly beast, person, or object you can recall. You cannot transform any non-humanlike feature such as tails or horns/antlers since this ability was not designed by creatures with such features - these features will remain during your transformations (If you have horns and turn into a key, the key will have horns on it. If you have a tail and turn into a frog, the frog will have a tail).

You expend 1 Ki to change into the form of a Beast or Humanoid type creature with a CR equal to half of your Monk level, rounded up as a Bonus Action. You expend 1 Ki to change into any object as a Bonus Action. It costs nothing to change back, you can do so as a Reaction. The objects you can turn into at different levels are listed below:

You can only turn into non-magical objects and have the same properties of the object. If your new is damaged you retain any HP lost when transforming back. If the form iis destroyed you transform back and retain any HP lost. What objects you can turn into ranges from: plates, weapons, scrolls, empty small structures, etc..

• Level 3 and over - Any small object or smaller.
• Level 6 and over - Any medium object or smaller. 
• Level 9 and over - Any large object or smaller.
• Level 12 and over - Any huge object or smaller.
• Level 15 and over - Any gargantuan object or smaller.

Duplication

3rd Level Way of the Seventy-Two Transformations feature feature

You're a one man army. As an action, you can spend 2 Ki and take 1 slashing damage to pluck a hair off your head to create a duplicate of yourself that you share a telepathic link with - you need not say anything, the duplicate know exactly what you are thinking and works with you with no need to command it. The amount of duplicates you can command at once is equal to your Wisdom Modifier. If you create more duplicates than you can control they will either do their own thing.

Any duplicate of you are a perfect copy and have the same effects and HP that you had in the time of making them. If you are charmed all duplicates all the duplicates will also be charmed since they are following your will. If a duplicate is charmed, only itself will be charmed - not you or any other duplicates. If a charmed duplicate tries to attack you it turns back into a hair. Duplicate have advantage against being charmed.

If a duplicate dies it returns back to being a strand of hair. If you die all duplicates turn back into a strand of hair.

Legendary Power

3rd-level Way of the Seventy-Two Earthly Transformations feature

Your Maximum total for your Strength, Dexterity, Constitution, & Wisdom Ability Scores are now 30 instead of 20.

This does NOT mean that 30 is now your current score for these ability scores. It means that you can improve these ability scores up to a total of 30.

Cloud Somersault

6th-level Way of the Seventy-Two Earthly Transformations feature

You can spend 4 Ki to jump up into the air to summon a magic cloud that moves up to 4 time your movement speed, uses flying speed, for the duration of your turn. If Earthbound was cast on you, you roll a Wisdom Saving Throw against the creature Spellcasting DC.

When outside of combat the cloud can travel up to 5 miles in 1 minute. It disappears until dispelled or when you hop off of it. You can stay on the cloud and hover for an unlimited duration of time.

You cannot use any other actions while on the cloud aside from move around on the cloud.

Monstrous Form

11th-level Way of the Seventy-Two Earthly Transformations feature

You spend 5 Ki to assume a monstrous form. You become Huge size, grow large fang, and have a second set of arms. This ability lasts for 1 minute.

• When you initially transform all creatures (friends and foes included) make a Wisdom Saving Throw against your KI Save DC to prevent being Frightened by you. Allies and creatures that have successfully done damage to you roll with advantage.
• You get a Free Action to use your second set of arms to do any of the following: Make an Attack Action (Extra Attack is still compatible with this) , Cast a Spell, or Use an Object. 
• When making an Unarmed Strike you roll double of your Martial Arts die to account for your second set of arms if they are able to perform unarmed strikes (not holding weapons or objects).
• You get Temporary HP equal to 2 x(Monk Level) while transformed.
• All creatures have advantage on attack rolls made against you but you have advantage on damage rolls against any creature while using Monk Weapons or Martial Arts.

Grand Transformations

17th-level Way of the Seventy-Two Earthly Transformations feature

Your mastery of earthly transformations has granted you the alter the nature of yourself and the world around you with ease. You can spend 5 Ki to do any of the following:

• Make yourself immune to one type of damage for up to 24 hours.
• Increase one of your Ability Scores by 5 for 24 hours, you cannot go above the Maximum Score.
• Change the quality or design of an object permanently.
• Change a creature's appearance for up to 24 hours.
• Transform one of your hairs into any object you can become, any type of natural non-magic material, or into any consumable substance permanently. Any substances created by your hairs aren't filling or or posses any unique qualities of the actual substance but it's a perfect replica in all other regards (also any food/drinks created taste exactly like you imagined).

Devout Student

17th-level Way of the Seventy-Two Earthly Transformations feature

You have proved that you are are willing to go further beyond to master the martial techniques that Sun Wukong has displayed through his legends. Now is the time to take what you've learn form The Way of the Seventy-Two Earthly Transformations and apply your understanding of earthly transformations with the teachings of other paths. When you begin a new martial path after completing The Way of the Seventy-Two Earthly Transformations you gain an extra feature.

The Way of Kensei

Your Kensei weapons are considered Compliant Weapons. A Compliant Weapon is a weapon that you can change size at will by either commanding "Grow" or "Shrink" to the weapon (you must use an Interaction to do this). Your Compliant Weapon can shrink to a few centimeters long and weighing almost nothing or grow up to 15ft long and weighing up to several hundred pounds.

The Way of the Open Hand

You will be able to use your Open Hand Technique you also choose to apply new effects (you can still use only one but your selection had expanded):

• It must succeed a Constitution Saving Throw or be Paralyzed until it succeeds the Saving Throw at the start of its turn.
• It must succeed a Constitution Saving Throw or be forced unconscious until awoken.

The Way of Mercy

Your understanding of the body allows you to learn how to become resistant to illness or unfavorable substances. You are immune to being poisoned/poison damage and have advantage resisting illness or being forced unconscious/paralyzed by non-magical means.

The Way of Shadow

When making a Hide Action you can also transform yourself using your Earthly Forms ability in the same Action costing 1 Ki.

The Way of the Ascendant Dragon

Harnessing grand earthly powers and setting forth to harness the raw strength of dragon-kind no hold no fear for dragons. You automatically succeed a dragon's Frightful Presence ability and dragons have disadvantage intimidating you.

The Way of Astral Self

 You look beyond the earthly world and into the astral one to learn more about how you can transform your very essence. You can spend 3 Ki to glimpse into the Astral Plane.

The Way of the Four Elements

While studying how to control the four elements you learn how to resist them over time. You have resistance to non-magical Fire, Cold, Lightning, & Acid damage.

The Way of the Drunken Master

While tumbling and stumbling around enemies' attacks you start to notice how to really frustrate them with your words. You can choose to taunt any creature that can hear you using an Interaction. The creature makes a Charisma Saving Throw against your Ki Save DC. On success the creature ignores you. On fail the creature chooses to attack you over other creatures until attacked by another creature. 

The Way of the Long Death

Your understanding of death and study of earthly transformations makes you exempt from its cycle. You are immune to Necrotic damage and creatures cannot gain/recover HP from damaging you.

The Way of the Sun Soul

Channeling the raw power of your soul allow you to look deep within the souls of others. You innately know the Creature Type of any creature you can see and can also tell if that creature is cloaking themself with magic.