I feel so sad for you. How about getting a better GPU in another way? In this mail, I'd like to introduce you a far more better way to get a GPU.
Do you know why your parents didn't buy you a nice GPU? Because of your poor scores... Please try to return your perplexity (退惘, in simpler words: leave Internet and embrace your study and real life), and get better scores. Your parents will be much more happier, and they will give you money and chance to buy everything you want, in order to encourage you to study better and better. Obviously, GPU is included. If you get the 1st in Linhai, sorry, you cannot get a mined RX580, but a nice RTX 3090 and many other cool stuff like a powerful, stable, new laptop.
I hope this will help you.