basically i'm 18 and my final exams at school are coming up very, very soon. I've been smoking daily, maybe getting 1/4 a week for the past two years, but i've just gotten slow and my grades have suffered considerably (previosuly i was "gifted", apparently...) so i decided to give up and im part way through day 2.

last night was my first night cold turkey, and obviosuly i found it almost impossibly to sleep and had waves of hot and cold sweats. All i want to know from any successfully or experienced quitters is would be be better to quit after my exams or am i doing the right thing? one side of it is that i won't be wasting my time stoned/smoking weed when i should be revising and my memory might be a bit better(?), however depression, chronic lack of sleep and a continuation of sh*t motivation might be more detrimental.. ANY replies would be greatly appreciated,

thanks for reading :-)