Replying to Going clean ?

I'm going clean. No alcohol, no green. 6 weeks. This is when my semester ends. I am doing it for several reasons. 1) the main reason i did it was to lengthen my study time. I just got mid terms back and having saturday and sunday mornings to study rather then lay in bed till dinner time will be of great essence. 2) Save money. I'm dropping 40~ a week right now on booze, and 30~ on green. 70 x 6 = 420 bucks. haha 420 wow thats ironic. 420 can buy you a new set up, a season pass, alot of stuff.

Basically my question is has anyone ever done this. Is it really that hard to do?