I think you should look up competing in a powerlifting contest. I compete and have seen competitors your age lifting in some of the contests. You’ll get nothing but support, cheers, and camaraderie. You’ll have to learn the 3 powerlifts which are: the squat, bench press, and deadlift. And, you’ll have to learn the proper techniques and how to take the judges lifting commands. It’s a very rewarding experience and you’ll probably set a state or other kind of record. Cheering you on. Being strong is paramount for mobility and health. Keep kicking butt.