Goethe C1 exam in a week

Hello, I have my Goethe C1 exam in a week and I know for a fact I am not prepared.
I passed Schreiben and Sprechen a while ago but had failed Lesen und Hören, and I am preparing for retakes.
I am consistently getting one mark away from a pass, and I really need this certificate to apply to my dream universities. I know my German isn’t sufficient enough yet, but I will continue taking lessons and studying the language for a while.
But for now, I just really really need the C1 certificate; if anyone has any resources and tips for studying please let me know.
Thank you.