quota command lets you check your disk usage.

To prevent the disks from becoming full, a quota has been set for your home directory. Your home directory is intended for storing results and your code. ~/ComputeSpace, on the other hand, is designed for performance and computations (note that you may lose your data).

Tips for cleaning up

Detect / delete duplicate files

fdupes . -r -d is a command that lists duplicate files and offers to delete them as desired.

Use ncdu to check disk space usage!

When connected to a terminal, ncdu is a command that lets you visualize disk space usage in your directories and even clean up files.