Help

My name is Andy.
I am 13 and i am a normal kid. I really like to make people laugh and i need someone to help me now. but things are bothering me in school. I used to go a nice school in 6th grade, but then my parents decided to move. so i have to move to another school also. and i found a school pretty close to my house, and its in the same distrect as the school i used to go. The new school didn't go well. the teacher tortured my mind. since 6th grade i easily get hurt by words. I never use to care about it, but now when people just call me names. i get mad so easy. I found my self recently have been starting fights. Even with my best friends, and i keep on thinking about it. I can't let it go. I used to be like..i don't know always happy. never get depressed. Now I keep on getting angry and Sad. If someone called me a fat ass. i will keep on thinking of it for the rest of the day. I used to never care about it. Now i would be so happy even if someone talks to me. I keep on thinking the people are gossiping about me at my back. maybe im thinking too much, but i have changed so much and so fast these days. i can't even think for a secound. Now i am having a fever and lots of homework. There is like lots of pressure on me right now....i know i can take it away by just doing the homework and take a sleep. but its not that easy. I just can't contol my self. I keep on day dreaming. Last problem is that i love to play basket ball. just that my skills are not that good. no matter what people says i never quit it. but now no one is saying anything about me. I just keep on thinking like. why are they not passing it to me. is it cause i suck? maybe i should really stop playing basket ball. I just try to fit in with the people, but i always feel left out. i mean....really i need some help. I don't really like to talk to my friends, parents, and teachers about this. So i ask you all to help me with my problem.