Cloud files

Hi. So I am having a crisis. I graduated college a year ago and my student account was deactivated. I had my personal email as a secondary. On trying to access the files from my phone it prompted me to resign in and when I did with my personal account it didn’t show any of my files. I am scared to log out of my computer. My entire school portfolio and my portfolio is on those files. I know it’s stupid that I didn’t back them up onto a secondary hard drive but is there anyway to fix this?? I can’t loose these files