I can help you get into your QuickBooks Self-Employed (QBSE) account, @zandstradoug.
To locate your account and to process an email change request, I suggest reaching out to QBSE Customer Support directly. You can arrange a callback or message to talk to them.
Follow the steps below:
Click the Assistant button at the top.
On the chat box that appears, type Talk to a human.
From here, you can now choose either to Message an agent or Get a Callback.