Bully for my weight

When I was in 4th grade my school would weigh kids in gym class. At the time I didn’t understand I was fat so when I would step off the scale everyone would laugh and say the ground shook when I’m stepped off. My gym teacher would shame me. I am 215 pounds and only 5’1 I get bullied and have a hard time getting around. People call me names. I’m still in 7th and I’m still getting bullied.