So I have been smoking since I was 15 (i am 19 now) , and I have been staying high for about a month or so, but I still am a noobie stoner cause the only people I smoke with are noobie stoners that only smoke every now and then or that don't know anything about weed, i haven't really found a real pothead circle yet. Anyways, I have some questions. 1. Does weed cause any permanent damage or any damage at all (even if it is temporary). The reason why I ask this is because I smoked 2 blunts, and took about 6 hits off a 2 gallon gravity bong. I got really high, but after I came down I feel like my brain got dumber, but then again, i could of just got tired and lazy off of smoking that much. 2. Also, I want to clean up but when I try to go to sleep while not on weed it is really hard for me to, what should I do. 3. Also, the person who I am staying with is kind of dumb (lol) , and he is kind of a pot fiend but he wants to clean up completely , but I just want to just cut back, not completely stop, what would be the best way to convince him to keep smoking it. Cause seeing I am staying with him, if he stops I have to stop.