I already quit the signup process once because I got frustrated trying to find the ID and couldn't, then came back later, still no success.

Anyone who has successfully signed up, where is the user account ID?

Apologies for the difficulty in entering your information. We just need the email address that you use to log onto the GCP console. For your project Id - you can find that in the developer console. IF you click on Dashboard and the upper Left corner has the Project Name and the project Id.