I would say all mistakes you did are stupid mistake, so it will not be a concern to other users.
I also can add another one stupid mistake, I forget my login details and I didn't have any back up, then I sold my device.
So I advise you have a password backup book, diary etc where you can write most things down in a book and not just one maybe two at least incase one gets missing which is not supposed to happen but that other will remain.
A better way you can buy steel plate or anything that can resist against fire, corrosion etc just like you back up your seed phrase.