See Azn, what happens is you get bored of it, plain n simple, as you suspect, and then you start to smoke crack, cuz your friends tell you its fun. No, im joking jesus haha. What you do, is change your smoking atmosphere. Let me guess, you at one point, smoked the same weed or the same few types of weed at the same house for months. Maybe longer. Well, if thats it, then man, you gotta get out and do things. It's kind of half a life style. And try limiting the times you smoke. Like, instead of smoking bowls all day, smoke a joint in the morning. Then chill out you know, do what you do, jam on the guitar a little i dunno, then eat some food and then later, smoke again, maybe a joint, or a few if your with friends. This way your high is more enjoyable, stronger, that old high you miss and love is there, you just gotta find differnt ways of obtaining it. Environment bro... sorry, this was a stoned rant