I will be 64 in a few months and this is my sport of choice. It is what I enjoy doing. The thing to remember is that this is a hobby and to have fun no matter how competitive we are. Fun is not defined by how well you do. I have seen 80 year old guys shooting 1911s they have had since Vietnam, taking more time to run a stage than it probably took to build it, having way more fun than some top dog melting down because that mike they threw will cost them one position on the leaderboard at some level 1 weekend match.
Shoot what you think you will like. If you like it keep at it. If you don't, find something that you do.