I acc feel like rubbish and idk how to fix it

I literally feel like shit. My mum is abusive (social workers already involved) everyone says stuff about me at school but claim its a joke its not even things like "omg ur smelly "its like "go jump of a bridge you dirty whore."Like wtf. No one gives 2 shits about me my siblings hate me and hit me too. Teachers arent helping by giving me work they know i cant complete. Ans now thw one thing im good at my dear mother has banned me from doing. But i have to smile and not cry ir else im an attention seeker. Im ready to drop dead.