Workout Routine, Looking For Tips

3x10 reps of bench
3x10 reps of squat
3x10 reps of close grip
3x10 reps of leg press
3x10 reps of shoulder press
3x10 reps of leg extension
3x10 reps of belly bench
3x10 reps of flies
3x10 reps of curls
sometimes cleans

current maxes:
bench 215
squat 255
close grip 115
leg press 215
shoulder press 140
leg extension 115
belly bench 55 DB's in each hand
flies 30 DB's in each hand
curl 95
cleans i usually max out at around 200

height:6'2 1/4
weight:193
age:15

i currently use no supplements but when i hit the gym hard i usually use GNC's Mass XXX and their whey

i was asked to move up to the varsity level this year and i would like to get bigger...quickish i mostly eat only meat like steak chicken fish eggs etc take a multi vitamin and everything