I saved everything and I tried to change the password immediately as suggested.
However, after I changed the password I couldn't login anymore with either the old or new password.
Then later I discovered that when I changed the password, all the keys related to the account were equally changed. I didn't know that's what's going to happen.
I thought only the password would be changed and I only backed up the new password. I didn't back up all the other new keys.