Cannot write to home directory
Different software will give you different types of error messages when you exceed the allowed space in your home directory. Most often they will complain about being unable to write.
Here are three way to learn about how much space you are using in your home directory.
Most users have a 300GB quota on their home directory. Run myquota to see your current limit and how much you are using. For example:
$ myquota Filesystem Directory Used Limit Home Quota: /home/NETID 195.9G 300G
You can use the standard Linux command du to see how much is stored in each directory. Depending upon the size of your home directory, this could take a few minutes to complete
du -hsc ~/*
This is similar to the above, but it give you an interactive display of your file usage that you can explore using the keyboard
module load ncdu ncdu