Don't have the will to live anymore

I don't have any of the necessities for school because my mother prioritises my sibling's stuff before mine even though my s.y. will start in a few days. I even got screamed at because I tried to persuade her to at least buy my uniform. My friends completely forgot about me. I really want to leave our group chat because seeing their messages at the top of my chats is giving me more mental damage. But if I leave they'll tell me that I'm an attention seeker or just over-exaggerate the small mistakes I did and shit talk about me for days(they do this every time someone leaves). My mother's business shut down because my area is frequently flooded recently and they can't continue anymore so were financially declining. I can't even go outside because the outside of my house is flooded even from light rain. The only thing that's keeping me going are comfort food, reading online and online games but it's now taking a toll of my health.

I'm crying I can't anymore I'm tired of everything