I have been smoking pot since he was 13. At first, it was obviously GREAT for SWIM. He loved it, he could get stoned off his ass to the point of forgetting where the hell he was or why he was there ( without it being a scary situation ). But now that I am 18 and has indulged in many other drugs he finds that marijuana just doesn't do it for him anymore. He tried to stop smoking for 2 weeks and then hitting a couple big bowls to see if it would make him enjoy it once more but it was the same , sedated, hungry, bored "high" that he always gets, even when smoking everyday for a long period of time. I used to LOVE pot, he wants to get the awesome high feeling back but thinks the acid trips he has experienced have ruined his psychological tolerance or something along those lines. He's tried different ways of smoking his pot, different strands, everything but baking a brownie. What should he do?