Hello there, thorpesteph89-ma.
Thanks for joining us here in the Intuit Community. Let me help you log in to your QuickBooks Self-Employed (QBSE) account that has your data.
One of the reasons why your data has gone when accessing your QBSE account is it could be it's not the account you're using before. To isolate the issue, make sure to log in using your QBSE login credentials when you sign up for the service. Then, check if the data is there already.
For future reference, you can visit our Community help articles that will guide you on your future tasks.
Please let me know how it goes, I’m still here whenever you need help. Have a great day.