I smoked an average of 3 times a week over the summer, and this year I'm paying for it. I have trouble (more trouble than I used to, anyway) with dealing with the abstract concepts of calculus, and my vocabulary has suffered slightly.

However, I believe pot has done more good than harm in my life. Before I started smoking (10th grade), I was really, -really- nerdy and uptight--about everything. After I started smoking, I became a lot more relaxed. I learned to have fun and not take everything personally. I really think the pot had a lot to do with it-- it broke some of my artificial boundaries, and allowed me to loosen my standards a bit. Mind you, it's senior year now and I'm passing 4 AP classes with A's or B+'s in all of them, and doing many extracurriculars. I keep smoking to the weekend, and have never moved on to harder drugs.