so you have you got that asound.state file back or not?
if we are all good you can mark this post as solved.
thanks for edit reply 23.
2) as you are still in school I hope you don't mind me giving you some advice
I back up my system partitions with a live usb stick that has fsarchiver on it.
but that product is also on a live cd such as
b) alternative is partimage but that can not image ext4 and is much slower than fsarchiver
3) I too make mistakes, giggles
so fsarchiver will allow you to make mistakes and recover from them
it also helps to make a backup of your image to dvdrw or cloud mode or external large usb drive etc
Don't forget to have a backup of your MBR unless you are using GPT
----being an old timer, I still have a MBR
info is at link