Custom Path of the Berserker

This is a custom path of berserker, I have changes some thing but still keep it mostly the same as I wanted it to be balanced hopefully this has achieved it 

Frenzy

Starting when you choose this path at 3rd level, you can go into a frenzy when you rage. If you do so, for the duration of your rage you can make an  additional melee weapon attack on each of your turns. When your rage ends, you suffer one level of exhaustion. This exhaustion can be removed with a long rest no matter the amount as long as it came from the frenzy effect

Frenzied crit

At level 3, When in a frenzy your rage is able to make your strikes that more devastating, allowing you to crit on a 19 or 20 

Mindless Rage

Beginning at 6th level, you can’t be charmed or frightened while raging. If you are charmed or frightened when you enter your rage, the effect is suspended for the duration of the rage.

Intimidating Presence

Beginning at 10th level, you can when you first frenzy, to frighten someone with your menacing presence. When you do so, choose one creature that you can see within 30 feet of you. If the creature can see or hear you, it must succeed on a Wisdom saving throw against your Charisma (Intimidation) roll or be frightened of you until the end of your next turn. On subsequent turns, you can use your bonus action to extend the duration of this effect on the frightened creature until the end of your next turn. This effect ends if the creature ends its turn out of line of sight or more than 60 feet away from you.

Additionally, attacks you make against a creature frightened by this ability are made with advantage.

While frenzied, you gain proficiency with intimidation, if you already have are proficient in intimidation you get expertise 

If the creature succeeds on its saving throw, you can’t use this feature on that creature again for 24 hours.

Retaliation

Starting at 14th level, when you take damage from a creature that is within 5 feet of you, you can use your reaction to make a melee weapon attack against that creature. If frenzied, the same applies, but  you can make a melee weapon attack against that creature at advantage.