i cant say it will help anyone ,but i know it has very limited risk unlike the pills and shit the docs hand out,
practically harmless,the worst side effect is the feeling good for no reason and having a appetite or being able to sleep a few hours longer,
the only thing addicting about it ,is it makes ya feel good enough to do often and becomes a habit more than a addiction
it can be stopped without harm for the casual user
the person who smokes all day everyday has some trouble withdrawing

but i tell ya in my years of smoking it has helped my depression,i was diagnoised having Bi-Polar disorder,some chemical imbalance that cuases instant mood swings that aint easy to control or be aware of,
cannabis does help me regulate my mood to a uplifting level,without it i am a lil depressed sometimes becuase im used to lifting my mood out of the gloom with a toke or too,i can survive without it and so often as it gets so hard to afford and harder to grow without risk

read up on it more though
try
www.erowid.com