Error on Ubuntu boot up - "recovering journal" [closed]

Trying to figure out what this means:

I got into the GRUB menu, chose Advanced Options, boot in recovery mode, login as root, and I did:

root@xps:~# sudo fsck -f /
fsck from util-linux 2.27.1
e2fsck 1.42.13 (17-May-2015)
/dev/nvme0n1p2 is mounted.
e2fsck: Cannot continue, aborting.

Coincidentally, I am also seeing this fuzzy rainbow thing on the outside of desktop windows:

But now the machine won't even boot up at all.

Step #1:

Lets first check your file system for errors.

To check the file system on your Ubuntu partition...

• boot to the GRUB menu
• choose Advanced Options
• choose Recovery mode
• choose Root access
• at the # prompt, type sudo fsck -f /
• repeat the fsck command if there were errors
• type reboot

If for some reason you can't do the above...

• boot to a Ubuntu Live DVD/USB
• start gparted and determine which /dev/sdaX is your Ubuntu EXT4 partition
• quit gparted
• open a terminal window
• type sudo fsck -f /dev/sdaX # replacing X with the number you found earlier
• repeat the fsck command if there were errors
• type reboot