Hi! I believe some students are really being very fast at learning. But tel me if you have already made any logical game yet. such as when i learnt C i made a game for adjusting squares having nos in a special pattern by keyboard space for selecting & enter key for exchanging'em. Very small & premitive but it is also a game as it has intelligence & sence of playing, enjoying....!!!
Anyways if u r really fast at learning, then (assuming u know C) start completing C++ in 15 days, & in next 15 C#....do nothing else then that. Give at least 5 hours a day for them!! After that Direct X SDK & XNA Game Studio is still there to learn. So be quick. Go to the downloads page in this site, all required things are easily available there.......
Happy programming.......