Change Password Urgently!

After I logged in to my account on my desktop (Windows 11) I see in that I’m logged in via facebook.

How do I change my password if in order to get a link to reset the password you need to put email address (and my facebook email doesn’t work) and not username.

Please fix this issue Urgently as you don’t have 2 steps verification on your system, there are people that using my subscriptions and are logged in with my username.