I believe in my limitless potential

Potential is a full tank in a car parked on the drive. Impressive, and worth nothing until something moves.

Being told you have it feels good when you're young and starts to sting later, because unspent potential turns into a kind of weight — evidence of a life you were supposedly capable of.

The cure isn't believing in it harder. It's spending some. Pick something you're theoretically capable of and be visibly mediocre at it this month. Spent potential beats stored potential every time.