Years ago, I looked at my photographs and decided I did not need to make any of those same types of photographs again. The operative word is "need". I still make them, but it's because the images present themselves and well, why pass them up? But I wanted to do something different, and I have had less success than I would have wanted. Moving forward is hard. Staying in one place is easy. Every artist (in any medium) that I know struggles with the same thing. You're on the right path, and many of us are right there with you!
For what it's worth, this happens in a lot of endeavors. I am a musician. In high school, I was a section leader and a bit of an elite at that level. In college, everyone had been a section leader in high school. But I was one of the top students in my college. In grad school, everyone had been at the top of their undergrad class. I had reached my level. It helps that both music and photography became mostly recreational (I have made a little money from both) and I can do what I wish. Having nothing to prove takes the pressure off.