Did anyone go through personality and identity changes after mania?

Title.

I was diagnosed at age 17 (18 now), and before that I used to be a very flamboyant and geeky person. I would try to fit in all aspects of my interests into everything I do. However, during mania, my interests reached sky high because of psychosis, and I was also extremely vocal with them at this time. So now I cringe really bad when I think about what happened, which makes me unable to enjoy the interests I once had. Now, I also try to be secretive by avoiding talking to people about who I am and what I enjoy.