What are my sign-in options?
You can sign in with Google, with Apple, or with an email and password. Google and email sign-in work on the web portal and in both the iPhone and Android apps. Sign in with Apple is available on the web and on iPhone.
Use the same method you signed up with. An account created with Google has no password of its own, so signing in with an email and password is refused for it, and Forgot password will not send that account a reset link - use the Google button instead.
If you signed up with an email and password, Forgot password on the sign-in screen emails you a reset link.