GSN games: just click the forgot password link, and do what it says. Usually it send you a reset link to your email address...where you can pick a new one. Sometimes it will send you a temp. password...use that to log in, then go to profile and set a new one. These days you need to keep track of passwords somehow. Either an encrypted (locked) file on your desktop, or if you have Apple, they have keychain (which saves them encrypted, and is safe) or if you use windows, chrome browser uses and encrypted file, so you can just save them, or Norton's vault...lots of ways to remember them. Pick one, and use it.
PayPal ...same thing. Click log in, and then click the "Forgot your email or password?
" link and it give you reset instructions in your email.