Help! im scared!?

im in yr 8, but transfering schools. i was bullied in my sch mggs, but i had 2 move cos last friday they locked me in a cupboard, turned off the lights, and left me there on my own for about 1 hr. anyway,. i had a bit of a cry, but recovered nd tha teacher heard me nd let me out.i used 2 be so confident. i dont know why im not anymore! (i was bullied in my last schl , 2. so now im moving to a new sch. can any1 give me tips on how 2 start well, keep peoople on the right side of me? they usually pick @ my looks nd stuff. anyt tips? im so scared it wont work out again! maybe its my fault? i just dont know what 2 do.