Reading you, I was debating on loving kick in the rear. Can't really do that these days and some people react negatively to it. Sounds like you are reasonably self-aware though, so...

Nobody can teach you to own and control you. But you had better. Use tricks, treats, magic, whatever, but get to the damned end or make for damned sure you know why you walked away (and live with that).

Your life matters. Your ideas matter. Birth them. It hurts. Push through. Don't look back at your life and wonder what it would have been like if you had stuck with it. It hurts. But do it.

Or do whatever you want, but this random stranger votes "getting over".