Suck at everything physical??

I feel like I can't control my body properly or something like that? Been playing football since I was 7 (23 now) and I suck at it. Practised tennis at university for 2 years, never got any better. Very poor in bed, I feel like a robot. Terrible at video games, I get how to play the game and know what to do but can't do it and always have slow reactions. I can't even get how to properly inhale smoke when smoking cigarettes...Always hitting my legs and head everywhere. On the other hand never had problems studying, finished school with excelent grades, now final year law student and never failed an exam. Don't know what's wrong I feel I can't do anything properly besides mental tasks, everything that needs some kind of body control fails. Just needed to vent I guess, because it drives me nuts, any advice is welcome.