This is one of the downsides nowadays as we all have multiple passwords for multiple sites. My only advice would be to start keeping a book and manage your passwords user names. Even have a copy of a copy. It is more work but you should not in counter the same problem again.
or you could use a software solution: I use KeePass.
Also, though I have personally never used this feature, Trezor boasts it can serve as a Password Manager too. So my advise would be buy yourself a Trezor, use it as a hardware wallet (highly recommended) and as a Password Manager.
Of course all this advice is a little too late for the OP