I snapped at my friends today... advice please?

I'm in 8th grade and I'm 13. I'm a guy. I've been going through puberty for 2 and 1/2 years. I was really depressed and paranoid (go look up paranoid personality disorder it's similar to the way my mind works + go look up enneagram type 4 I think? it's called the individualist...) in the beginning of the year. I had no friends. but then I started hanging out with these people. My best friend of the group was alan, and he was well, he himself likes to say that he's stupid though I feel like he'd do better. he's good at sports and got me hooked on CoD. then I have my other friend katrina, and she's been friends with me since last year, but more with my brother. my brother is popular yet he feels like he's obese. As i started hanging out with them I started to feel more and more melancholic. they were all controlled, they never were embarassed, never cried, stronger than me, did more than me, etc... (I'm black btw so know this b4 this next part o-o also like 2 people in the group are black too) we always tell black jokes. I use to be okay with them, but then I started doing research on civil rights and WWII and now I'm starting to really hate them. I like anime and what not so they always criticize me for it. I also like japanese music (vocaloid) and I'm criticized for that too. I use to be such an otaku I even knew certain dances. Recently I've hated being known as the anime freak or fag. I don't play any sports so I'm also known as inactive (though I'm starting martial arts in spring and going back to soccer). I get upset because in gym I feel like I let them down because I suck at most sports. they always criticize the fact that I draw manga though that doesn't bother me much. they always are mean to me. even katrina does, and she's like my sister. I expected her to be the nicest of all due to past friendship so it's sort of a let down (i haven't told her that yet)... I talk to my brothers and uber wise uncle (i use epic words like uber o-o) about these kinds of things. they're helpful but I just can't put them in action. I told them that though I feel like **** around my friends sometimes it's worth it. I'd rather be where I am now than where I was before. I also am mean to myself whenever i make mistake. if i hand in a project late or get a bad test grade I'm mean to myself. So I have been piling every bit of life that has made me upset in my head. Even if it happened like two years ago. and today it got to too much. I wear hoodies and the teacher hates it when I put the hood on my head so one of the nice teachers took it off but I thought it was one of my friends messing with me so I was like "stop it you *** hole" like 5 times b4 I actually turned around. the teacher was laughing. I faked laughing. as soon as the teacher left, I started crying. They thought I was upset by that and the fact that I sort of have to hand in a project late but that wasn't it. It was everything. A lot. mistakes, everything. I hate how some think I"m that dude that's in the cartoon that if I got pantsed I'd be wearing like the hearty boxers and what not. I hate how all my friends don't make mistakes and how they're always calm. how they never cry or get irritated. how they're good at sports. how they're better than me. Katrina tried the hardest to get my feelings out of me, but I couldn't. Alan was optimistic about it. the rest of them were optimistic too. I feel terrible because I snapped at them. I feel bad because I've made them go through my bs. I'm afraid of 2mrw. I don't even think they ever want to see me again. I just want some advice...