Even as you continue to upgrade your character in Lies of P, you eventually will unlock a way to respec your character and reset your level to change whatever build you've developed. Tailoring your stats and abilities to perfectly match a difficult boss can be the decision that leads to your victory. Although this mechanic may take some time to become available, you'll eventually have the opportunity to change almost anything you want.

https://screenrant.com/lies-of-p-respec-character-reset-level/