hi there if i was you i would be proud of who i am one of my close friends is big and she is always putting herself down and that only makes things worse. i mean i understand how she feels she is always getting laughed at and the advice i would give you is to stand strong and be who you are dont worry about what people say as long as you and your mates stick together you will be fine and also if you do feel really sad i would talk to some one which i can trust such as your mum and dad to exspress you feeling that usally makes you feel better.