If you can, you should consult with a counsellor or a teacher you trust at school.
Don't give up ! Binging is something that helps go through difficult times. But in general being fat is not a problem but a consequence of deeper problems you can face (difficult relationship with parents with your mom in your case or friends etc.) You have to find the real cause of your problem if you want to get better. Don't let them get the Best of you.
I was like you in middle school and highschool. I am now 21. In my case I hated school, and as soon as I got into college I went to the gym and fueled my anger into sport even though I didnt really like sport before.
Don't give up, self harm is not a solution. Try to drive your anger and frustration towards hobbies, sport, music, art or whatever. I am rooting for you !
i feel like i can really relate with this, when i was 8 i started to release how fat i was from others kid and how some of them would make fun of me for it especially my mom. she kinda reminded me of the bf in the story but different, she would criticizes my weight, hair, body, the way i dress which made me start doing makeup but i found out at the age of 11 she was talking sh*t about me with her other friends and when i confronted her she said that she wasnt and then judging me and everything about me. i'm now 14 and still this is happening i feel just like her in the story i know i need help but i dont know where to start cuz i cant control myself when im sad and binge cuz i know the reason on y im so sad is because of her. idk if anyone will see this but pls help me, my last resort is to ask random strangers online, i just want for someone I know what im going through and instead of throwing up, I cut myself cuz I cant make myself throw up for some reason so if anyone can help with that thank u.