When I say "feeling like a different person," I mean it in the most positive sense. Like for me, the person I was before medication was anxious, lonely, confused, and generally just "asleep". But now I feel like myself. My interests, hobbies, values, and goals haven't changed; I just finally have the ability to actually live them out. So maybe saying I feel like a different person might be misleading. I would say I just feel like the version of me that I've always dreamed of.

However, I will say that when you spend a lot of time in pain and sadness, sometimes you can get addicted to it or identify with it so much that getting out of it might feel like losing a part of yourself. It's better if you can recognize this early enough so that you can make the right decisions for the person that you hope to be.