You can use the mending cantrip at will. As an action, roll a number of d4s equal to your proficiency bonus. You regain a number of hit points equal to the total rolled. Once you use mending to repair yourself, you can’t repair again until you finish a short rest.

Even though you were constructed, you are a living creature. You are immune to being stunned, paralyzed, and poisoned. You do not need to eat or breathe, but you can ingest food and drink and you will not physically age, nor die of old age. You do not need to sleep, but may enter an inactive state for at least 6 hours to  benefit from the  effects of a long rest. You do not dream in this state, and are fully aware of your surroundings and notice approaching enemies and other events as normal.

Due to dollbound's bodies not truly having a biological sleep cycle, they are capable of viewing through the darkness, keeping themselves and any ally or friend nearby safe. You can see in dim light within 60 feet of you as if it was bright light, and in darkness as if it was dim light. You can't discern color in darkness, only shades of gray.

Your Charisma increases by 2 and one ability score of your choice increases by 1.

You are incapacitated while in the area of an antimagic field. If targeted by Dispel Magic, you must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.

An awakened toy has no natural lifespan and can live for as long as there is magic to fuel its existence. This also means that, without regular repairs, a toy could eventually remain sentient, even while torn to pieces and left alone.

Awakened toys average between 1 1/2 to 3 feet tall and weigh roughly 2 to 10 pounds. Your size is Small.

Over time dolls have learned how to communicate to each-other with out most understanding their words. 

Even though you are sentient, you were once inanimate therefore you continue to have the same traits a normal toy would. You cannot be Grappled, Stunned or paralyzed.

compared to most races dolls aren’t that fast, but for their size they are extremely quick when sprinting. Your walking speed is 20 ft but your dash speed is 50 ft.

When motionless, you can appear to be a regular toy. Observers must make a Wisdom (Perception) check contested by your Charisma (Deception) to realize your true nature.

After what feels like an eternity of watching everyone else play, you begin to teach yourself something new to the point of expertise just to entertain yourself.

More likely than not your party will have those faster than you are. A willing party member of your choice can pick you up and carry you around for about 10 miles before having to put you down. 
you may also be picked up if you yourself are not willing. If you are unwillingly picked up you gain a d4 to damage done to your carrier.