I smoked weed for a couple years. If I could go back in time, I would have never tried the stuff. It's been probably 8 years since i've done it though.
I have no moral problems with weed, i'm not even sure it should really be illegal. But in the end I learned on my own that weed can have some very negative effects on a person. IMO it's really like playing a small form of russian roulette with your brain. Of course I think acid, and other harsher drugs are an even more extreme form of russian roulette, and I NEVER tried one of them.
Some of you might be laughing at me after reading that, but I believe it to be the truth. Often times the effects of Marijuana don't show up for years. Someone might smoke it for years, give it up, but later in life find that they develop emotional problems, or severe depression. Sometimes those problems surface much quicker, but the effects are different for everyone.
Then again, there are some people in my experience, who can smoke the shit for years without ever having a real problem. Of course i'm talking about mental problems here, the lung problems are too obvious for me to even mention.
When I call it russian roulette, i'm referring to the way it effects everyone differently. Some people can smoke, and smoke and never have a serious issue. Others however, like myself, can smoke it for a few months and suddenly find themselves, a paranoid, emotional mess. I still believe I have some after effects from it more than 10 years later.
Before I smoked a single puff of weed I was a very athletic person. I was always playing a sport of some kind. I was very healthy, was in great shape, and I felt great. After smoking weed for a few months I had stopped playing sports for the most part. I started to put on a little weight, and I became a bit of an emotional basketcase.
So, my message is basically that weed is not all fun and games for everyone. My advice is to never touch the stuff, and if you do, try and stop ASAP. You may notice your probems becoming even worse after you quit, but with time, and a tough will to get through it, you'll be ok.