Hi there,
Gaining access to your QuickBooks Self-Employed account is so important in order for you to get your work done. I know how busy you must be as a solo-entrepreneur, and I want to get this sorted out for you as quickly as possible. I'll help point you in the right direction to resolve this.
Based on your question, it sounds like you may be trying to access your Self-Employed account using the QuickBooks Online app. QuickBooks Self-Employed is a completely separate program from QuickBooks Online, and the two must be accessed from their own specific applications and websites. Make sure you've downloaded the QuickBooks Self-Employed app, rather than the one for QBO.
Alternatively, when you sign into your account using a web browser, you'll want to use the site for QuickBooks Self-Employed accounts here: https://ca.selfemployed.intuit.com/login.
That should get things sorted out for you. If you're still running into issues logging in and you've confirmed that you're using the correct app and website, I'd recommend reaching out to the designated Self-Employed support team. These agents will be able to sort this out for you in no time.
Have a great day.
