Cannabis, Addictive Traits?

[Chronix]

Now dont let the title mislead you i'm not here to try to lay claim to there being an addictive quality to marijuana. But SWIM has been smoking heavily for about 3 years now and is starting to notice how it has enveloped SWIM's life. All SWIM does everyday with his friends is toke and when SWIM is broke and cannot buy weed to partake in the only activity that seems appealing latley he enters an almost "crackhead", for lack of a better term, mood where all SWIM thinks about and does is tries to either get more weed directly or get money for weed. The main point of SWIM's post is to see if anyone else out there feels the same way and if anyone has any advice on how to avoid these times or anything else.