After reinstalling ubuntu 22.04, I found out that I have duplicate home directory /home which contains my new files and /media/lance/Home which contains my old files.Link to first problem
After following Quick GUI Fix, I was able to restore my files and directory /media/lance/Home back to /home. However, I can't find the files that were in my /home directory before, but it still occupies space in my / root partition. (91.3% full)
