It's not physically addictive. It's habbit forming, but it's not something you NEED, not like heroin, or cigs. Cannabis isnt something that you cant stop. Simple dont buy any, dont get stoned and your there. You probably arnt even getting half the symtoms you think you are. If you've been smoking awhile your going to be used to eating lots of food, so you'll think your eating less, insomnia - that's probably just how you would naturally stay up, but you smoke yourself to sleep. Cannabis just isnt physically addictive.