Are their outside sources that could be causing depression? I'm asking because I had a very bad time with depression a year or so ago.

After Hurricane Katrina, I got really depressed and didn't leave the house for nearly a month. I lost my job and had a couple ounces and just smoked all day everyday. The weed certainly wasn't helping, so when I finished my stash and didn't pick up anymore, went and got a job, went back to school, and than started smoking again when I was more emotionally stable.

In my case, if I'm already really depressed about something, smoking will only make it worse in the long run.