I think all of that is actually normal... I feel that way too, and I bet a lot of people do. I guess it's because we have a very strong idea of what the perfect life should be. We hear so many definitions of the perfect self that sometimes we get lost in ourselves.. what I mean is that you're expected to be humble, nice, out going, smart, confident, out spoken, loyal, etc. I don't know where all this comes from, but we get the feeling we should like to travel, dance, party, listen to music and I don't know what else. But the thing is, we are all different, and I prefer to talk to someone about a good book than to stay up until morning dancing and I used to feel bad about stuff like that. What I mean is that maybe you already know yourself but you're afraid you don't match the person you want to be, and that's where we need to change our way of thinking. I think a lot of the stress, fears and ansiety we feel (and from what you described, you're feeling all of those) come from thinking we're not how we should be, thinking everyone else is doing better... What I can say to you is, be yourself, face whatever makes you angry or sad, get 1 or 2 real friends and talk to them about all of this, find out what makes you happy, what do you like to do. Try to live for yourself and your true friends and forget about all those ideas about what happiness is about, because in the end it's up to you.