In real life I'd probably be rubbish at Quidditch; my coordination and visualization skills are weak PRECISELY in those areas that would be needed for a broom-based flying sport.
Fortunately, my character is not so crippled; as Will Lestrange I'd totally be a Quidditch star playing whatever position my team needed me to fill in for! (Think of Ginny Weasley; almost as good a Seeker as a Chaser, for example.) But I'm probably even better at some of the other broom games: creaothceann, aingingein, and even old fashioned broom races.
As for this year? I definitely plan on playing Quidditch this year for SQT! I'm not at the point where I can say "I have accomplished everything I've set out to"... and, of course, I want to welcome new people to the game as much as possible (and all the better if the new people in question are Slytherins