It's not a joke, OP. I had a friend overdose on 42 marijuanas. To answer your question; I believe you can become dependant on it. A habit.
Ok sorry for not recognising that you are a girl. 12 step programs help a person sustain from actively participating in thier addiction. The result is one depressed and angry addict because he/she cannot participate in the addiction of his/her choice. The addicts knows in thier own mind that addictive behavior is good. But everyone else says its bad. So they end up at a 12 step meeting. It does help a small percentage, but it's a small percentage. And i don't think marijuana addiction is ludacris. Others do.