well, if it means anything to you.. i agree with almost everything you said.
im 20 so i'm going through the same stage. doesn't it feel good to at least think you are moving in a positive direction in life?
it's like you get ridiculed and put down by others all day, everyday but when you're alone, your thoughts and reflections seem so right. but like you said, everyone is so judgemental. but what else do you expect? we are a bunch of humans sharing the same world. we are BOUND to criticize, compare and pass judgement. maybe to make ourselves feel better. i dunno..
all we can do is try to humble ourselves and live life to the fullest.

keep reflecting on life and putting your thoughts to words. it really helps us get through the bad times.