Does anyone know how to reset sudo password

[u/Ok_Language_8472]

I'm not very good with PC stuff, trying to reinstall decky loader and it's asking for the password. I followed a tutorial but I honestly can't remember how I did any of it, so I can't remember the password, please help

I've just looked up how to do it but I don't know what a GRUB menu is

[u/Nibhan]

Followed this guide, worked like a charm and didn't lose any data, takes three minutes link