About grades at school please help :(

Okay so I just created an account of reddit right now just to post this because im desperate I dont know what to do anymore so idk much but if theres any problem abt my post sorry.

short story: I NEED fast working subliminals for school

For context I am really scared and stressed for my future, my grades at school are very low even when I try and it makes me feel like a failure, its ironic how my dream job is to be a doctor if I cant even get over a 50 in maths.I am tired of everything, I also tried different types of manifestation but nothing works and subliminals are my last hope right now but everytime I try to look for sub recommendations and stuff I only see people with really high grades being worried because they are scared to get 99% instead of 100%, and I understand its different for everyone, but I seriously want everything to end I dont know what to do anymore and I need help, so if theres a kind soul out there reading this please help me, if anyone that has went through this and used to have bad grades knows a sub that worked for them to have the best grades please tell me :(

Also, tomorrow I have the first history exam of the second semester of the year, and I cant even get myself to study, I have been struggling with depression and bad anxiety and I dont even have hopes anymore, my teacher is also going to check our notebooks and I cant even find my papers, I even asked my classmates if they could send me the papers on the school groupchat and everyone left me on read while the only one that replied said they wont send so many screenshots just for me and that its my fault for not doing anything.I know it technically is my fault but thats the last thing Id like to hear whenever I am going through these type of things, now im crying in my room because I dont know what to do, its night and im thinking about begging my mom to skip school tomorrow so i can do the exam another day but she either will force me or I have to tell her the truth and she wouldnt even try to understand me she will be mad because im “lying about becoming a better student this year”.I dont know what to do with my life.

Also sorry if my wording is bad I know it sucks but english isnt my first language