I think this is a great thread, There aren't enough honest discussions about marijuana, and the negative effects it can have on a person. Has weed fucked me up? Yes, without a doubt. Would I have been fucked up without weed? Yes, for sure. But pot always provided a distraction and an escape from having to deal with the things that were at the root cause of the problem. I am 31, just starting a career, and just starting to deal with a whole ton of emotional/physchological issues that have been affecting my life for over 15 years now. From about 24-29, even when I became cognizant of these things that were holding me back, I used pot as an escape from the reality of my situation, and it really did work for a while, but eventually you get to a point where you (at least me) want something more from your life, and being addicted to anything just gets in the way of that.
TL;DR, but my little brother is a genius, He skipped grades in school, got top honours in a helicopter mechanics course, and then decided not to pursue it as a career, because he had to pass a drug test to get hired on anywhere, and he cannot go a day without smoking. I think (and this is just my opinion, so don't tear my head off) any addiction, is a sign of a deeper emotional imbalance, which is why some people get hooked on a drug, and some people can recreationally use any substance. But because pot is so socially acceptable (compared to other drugs at least), and because there are so many resources like High Times magazine, that jam the message that pot is not, addictive/harmful etc, people get hooked on it before they even realize what's happening, and the best way to make an underlying issue worse, is to ignore it for a few years.
I wish that when I was a teenager, there had been more honest discourse on the subject, because all I ever got was the two extremes, the DARE-all drugs are bad period, and the other end, of pot never hurt anyone/is not addictive school of thought. All I have to do is read through the Sex Love and Relationships forum, and see all the posts made by habitual pot smokers, about how they are shy, socially isolated,lonely, and can't get a date to save their lives, even though they have good jobs, rocked good grades in school, are in shape etc etc, to know that neither of those schools of thought are entirely true...Sorry for making this too long!
I have been off the pot now (with a few relapses) for over six months now, and my life has honestly improved so much. I am still super lonely, and have trouble getting dates, but when I man up and push my comfort levels to try things (which I never did when I was smoking), insanely good things have happened. Getting a great job, getting a career in the field I always wanted, picking up the only attractive woman in a camp with 250 other guys, and having a level of mental stability that I only dreamed of a few years ago...