Your Projects would already be under your old email address - we cannot help you on that score - if you remember your password for the old account you will then be able to access your Projects again.
So, looks like your Projects will need to be migrated to a new gmail account. Don't post your email address or anything else related to security (I have deleted the email address from your post!).
I'm going to assign your Topic to MIT. They will be in touch and tell you what to do. They might need some Project names, so they can find your App Inventor Account.
Please be patient, they are a small team and you are up against a timezone difference and the fact that it's a Sunday too.