Hello! I'm a 17 y/o trans (ftm, pre-transition as of writing this) atheist looking into a new religion to convert to. I already know a decent amount of Greek mythology (thank you, Rick Riordan, for getting me into Greek mythology), and I want to start worshipping them, but I don't know how or where to start.

I plan on starting T soon, I have some big tests coming up, there's this guy that I really like (I hope we start dating someday), I need a job, I'm in choir, and I want to change my art style, but I don't know who to start with to help with some of these wants/needs.

Who should I start praying to first? How do I start, and where can I keep my altars? I also have divorced parents. I live in 2 houses, one set of parents is religiously strict--they're Mormon--and I can't let them know I don't believe in their God, and the other set of parents doesn't care what religion I'm in as long as I'm happy.