My mother is an alcohol and i still and have put up with rumors that have gone around the local village for times and thats why when i went to the local school i left it within 3 days because i knew some people would try and maybe pick on me. I moved from schools till i decided to leave school at the age of 14.
If the ones that pick on you know how it felt to having to care for parents or siblings then they would shut up but till that time comes.. well. You know even if the teachers don't do any thing you can always march into the head office where the headmaster is and yell at him and make his staff (Your teachers) suffer. Its the only way i delt with things and i can promise you it works :)
x Bridge