i know how you feel. i used to be so cynical about things, people didnt want to talk to me. i combated this by keeping all my negative thoughts in my brain, then writing them down later. that way, i stopped depressing people so much...
dude that's exactly how I am all the time... it's shitty because after awhile you just cant see things in a positive light anymore man. gotta free your mind of that shit...