Having issues with creating Mok keys for my NVIDIA drivers on Linux Mint

Yesterday I tried to install the latest NVIDIA drivers on my Linux Mint laptop (version 21.3, Cinnamon Edition) and my Driver Manager said that, since i have Secure Boot enabled, I had to create a Mok key for my drivers so I could use them with Secure Boot. So I created a password and restarted my PC. However, I didn't know what to do in the MokManagement screen, so i turned off my PC and then turned it on again to be able to start over. After turning my PC on and off a few times to try a few different buttons thqt I ended up not understanding, I looked up a tutorial and tried to follow it. But when i clicked "Enroll MOK" this time, instead of showing "View Keys", it asked if I wanted to delete my existing keys.

What should I do to get this to work? I turned off my PC after this and switched back to the open source drivers because, again, I had no idea what to do. Did I fuck up my drivers? Can I try to redo the process to make it work? What about the extra keys I created? I'm really confused. Thanks in advance.

P.S.: I also just remembered I made some Timeshift backups before I tried to switch drivers. If I rollback to the backup will my keys be "overwritten" and I'll be able to try to switch drivers again with no consequences?