I don't what type of problem i have...

PLEASE LISTEN UP I'M DESPERATE RIGHT NOW. So basically one day when I turned on my computer (Im using mx linux) it takes me to grub menu or smth like that? and I can't do anything, so naturally i went hunting for solution.

One of the solution that I found is booting up to mx live session on usb -> go to gparted -> select my main hdd -> choose the root and change the partition to msdos.

This sound risky but I decided to do it anyway to give it a try. When I did the step, it basically eipe my hdd drive so it was all "unloccated" or something like that but I don't care since I don't have anything important inside there. I tried to reinstall Mx linux but it just keeps giving me error like "Failed to setup user password" and "Cant mount to the partition" or smth similar. So I decided to change to Zorin os since it sound pretty interesting but the installer keeps crashing for no absolute reason, and im lost to this day.

TL;DR Change root partition, hdd completely wipe, can't install any os.

If you have a solution I WILL appreciate that. I only have access to my computer on weekends so don't rush me.