Someone please help

I have been struggling with everything, everyoneone around is always being annoying rude or dont care at all, my friends barely act friendly around eachother and always fight, and my own best friend is starting to act rude and obnoxious calling me two faced,insulting my family, and over all looks down on me, all of my classmates think i am an idiot and obviously pity me like "oh she is sitting alone how sad" or just look at me within disgust and dont even try to help me, my friend has been acting strange around me like she likes me and she does this with all my friends in my gc but she doesnt admit it, my friend jess only hangs out with me for lunch money, i feel bad for her bc she never has anything to eat these day but she needs to stop, my crush also looks down on me aswell and sometimes stayes away from me, my dad lost several amounts of money due to scammers and is always fighting with mg mom over the stupidest things, my brother always just cries about everything and doesnt understand when to just stop and i am overall good at nothing, boys at my old school nicknamed me the dumbest girl in the year and the girls in my old school aswell only talk to me because they think im a ugly good for nothing loser, i get picked on, not obviously but it doesn't take a genius to know who likes and doesnt like you, ik i should not listen to them but it always makes me wonder if thats true, i am not merely attractive unlike all the other girls with luxious hairs that look neat all the time and with no body hair or not clear to have some and overall all friends with eachother, meanwhile me i look like i just woke up from a terrible dream, even worse i dont even know what im good at, i am not good with gymnastics, sports, singing, dancing, and ect. Idk who out there is reading this, but dont be afraid to be yourself because if you do, in the end it will work out, unlike me, i already damaged my reputation enough to turn back already,but if i could i would've tried and change it all for my sake.