How Do You Harness Growth While Chasing an Unachievable Target?

i believe no matter how many businesses i build, i'll never feel like i've reached my potential. So the question is, how can i harness my desire to grow, but do so in a way that's chasing a never attainable target? That's always really hard for me. I think one of my answers is not to focus on the output, but to focus the input,. focusing on putting his best foot forward, on the things that i'm working on im.