I smoked and grew quite a bit when I was in HS, but was more fond of growing and selling back then to pay bills (moved out of my parents house at 15). Then I was in the military for quite a few years and couldn't smoke, which ended after I was in a bad car accident and sustained a serious spinal injury and left the service. Afterward I was paralyzed from the waist down for about a year and a half or so. I started smoking again basically just to sleep, pills and injectable pain killers made me sick to my stomach. Anyway, I got very bored just staring at the ceiling for so long, seasons started passing me by. I would watch the sun come up and go down, day after day, month after month. My once extremely athletic body started to atrophy and I started to give up on life and just wanted to die.
I started thinking, 'what can I do that doesn't involve major labor?' just to keep myself occupied. I had a ton of fluorescent lights and a huge empty room, plus pots and nutrients (having been a plant enthusiast for many years). I figured 'what the hell?' and threw a few seeds in some small pots. My first crop was a success on so many levels, it gave me hope and purpose. I crawled to my growroom several times a day, and eventually started walking again. I pushed and pushed myself to do better and grow more, even though I had 10x more than I could smoke. It was the only escape I had from either laying on my back, or physical therapy. My old commanding officer is one of my best friends to this day, he bought me my first HPS lamp for my birthday.
Eventually I started installing shelves and better lights, timers, water reservoirs, etc. I became legal the minute I asked my doctor about it (well not the minute, but the paperwork started rolling that day), since he was concerned that vomiting from pain killers wasn't helping my back very much. All that was years ago, I then enrolled in a community college and started taking horticulture classes at night, which eventually led to me opening a business working with plants full time.
In short, growing MJ saved my life in a way. Without it I would've blown my head off, no question about it. So many people view mj as negative, but those people have never met me. I am a prime example of when MMJ and cultivation can be a positive.