Any advice?

Turned 15 recently! After years of hearing the word “gay” as an insult, I’ve come to the conclusion that I am gay!Is there anything I should do about it? Should I tell anyone, or is it not a big deal? If you could travel back in time to when you were a teenager to give yourself advice on this, what would tell yourself?Sorry if this isn’t the right place to ask questions! I’m new to reddit and unaware of which subreddits to go to.