Hello Danny, thank you for your question. to answer your question no it's not too late for you to start playing football but I do have a few suggestions for you. First, I don't know if you have been physically active the last few years, I do think you might want to start training to get in shape. Second, make sure you keep your grades up, I say that because your grades are more important than football. Lastly make sure you have a finical plan in order, so you don't have to depend on football to pay your way through college.