Re: 26 years old and want to get into basketball
Never too late to start playing ball man, but in terms of your goal of being a good player it will take time. Start learning the fundamentals, shooting, dribbling, passing, rebounding, driving, finishing below the rim just to name a few. I suggest downloading a basketball dvds from piratebay or something.
Then, actually playing pickup games to practice what you've learnt and gain experience and improving your basketball instincts.
For me, being a better player motivates me to practice harder. Nevertheless, it's a win-win situation for you as you will lose few pounds as you keep practicing.