I’m trans and this was what happened to me first. But don’t just change your pronouns quite yet, these feelings can take a while to fully come to fruition. I was in your stage at the beginning of summer 2019, believed I really was trans a while later, around before covid, and came out to someone (my mom) 12-15-21. So give yourself time to really understand yourself. I’m not saying you HAVE to wait this long, if you feel ready do it whenever, but I would recommend waiting a bit.