Decide what you want to do and stick with it long enough to get great at it. Not good. Good doesn't cut it these days. You have to get great.
Take feedback. Internalize the criticism you receive to make adjustments. There's no shame in course correction. Even harsh criticism, even mean criticism can help. Don't take it personally. Extract the value from it and use it to get better.
But don't let them drag you down. Move on. Keep going. Become better at whatever it is you're doing than anyone has ever been. Stay focused on the results you're seeking.
That's how you win.