I agree with you that it is addictive. It works the same way as cigarettes. Nicotine mimics the natural chemical acetylcholine in your brain. So when you smoke a lot your body stops making it because you are giving it a mimic. Your brain also produces its own cannabinoids which THC mimics. So, the same thing happens. When you smoke a lot your body quits producing these cannabinoids. And these are chemicals that help people deal with stress and make people feel happy. So when your body quits making its own and you take the mimic out, you don't produce it anymore. It takes a while for your brain to start producing its own again. So you feel stressed out and can't produce the chemicals that make you feel happy. It takes a while but you will start producing those again, promise. Just stick with it!