hmm, im very sorry to hear this, but lemme tell you what i think. sometimes when you smoke, it tends to make some people more emotional, especially when you are in great deppresion. Of course for other people it feels good to smoke when you feel down, but everybody is different. there are many factors to why you feel different, maybe one reason was that when you were high, the people you were around made you feel uncomfertable and self-consious about yourself, or maybe it was just the music being played. For me, if im around people that are extremly roudy and loud, i get paranoid as hell and think that something terrible is going to happen, so i get all freaked out and go in another room and play guitar. If you feel that weed has changed your life and you wish to never lay eyes on it again, that great to not need a drug in life. However if you ever come to a situation where you are asked to smoke(and i know you will, everyone does), either say no, but if you do happen to want to, just be positive and relax.