I'm 19 yrs. old and I'm a sophomore in college. I really wanna quit bad. I've only smoked for 5/6 months but I'm addicted. I tried and I quit for about 5 days. During these days, I gained weight (a lot), got stretch marks from it (again!) and I got bad grades and couldn't concentrate in class. I smoked 2 cigs yesterday, and I blew through my homework like it was nothing. It was so easy for me with nicotine in my system. So the ? is can I quit during college w/o getting bad grades. BTW - It's also essential I get excellent grades this semester, as I'll be transferring into a prestigous college nxt yr and I need the good grades to get in. Help!