


Don't worry, you won't loose your data doing this as it merely overwrites the OS, it doesn't overwrite your files.

Once there, I clicked on "Reinstall macOS". Since I couldn't boot from "Macintosh HD" anymore (I was just getting a white circle with a bar across it), I rebooted my macbook and pressed Cmd + r. Try to reinstall Mojave (this won't wipe your disk) - I wanted to return my macbook to as original a condition as possible, and I figured attempting to install Mojave was the best way to do it.I'm not sure if step 1 was necessary, but since I did this en route to fixing the loop of death, I'll list it here for you to consider. I was facing the same issue and was on the verge of reformatting my macbook.
