How to be on top

I think I suck at being on top I usually barley go on top during sex, I use to more with my ex but now with my current boyfriend I just feel like idk what I’m doing I feel like I’m stupid. Tips on what to do on top? Maybe idk how to move my hips that’s the problem I just feel like he doesn’t enjoy it probably just in my head but I wanna be on top more but idk what I’m doing🙃