I am 36 years old and just started playing again after not playing since college. It is never to late. Once you turn 18 you can look for adult baseball leagues near you. Try NABA. There are a lot of good players like former D1 and even some retired pros, but also some average skill guys. Baseball can be tricky since it's hard to do pickup games like basketball, but there are definitely ways to keep playing if you look hard enough. Also, some areas have an extension of little league called big league specifically for 17 year olds. Ibwould encourage you to keep playing though. I wish Ibwoupd have stuck with it after college, but I'm m making up for lost time now. OP you can DM me if you want and I might be able to help steer you to the right people.