Welcome to the Community, @jonathanscarring.I'd be glad to direct you to where you can find it.
The Gear icon can be found in the upper corner of your QBSE window.
If you're referring to the Accounts and Settings option, it is located on the Gear icon in QuickBooks Online.

To learn more about the basics of this product, here's an article you can read: QuickBooks Self-Employed Overview.
For future tasks, here's a resource that can help you organize your transactions in QBSE seamlessly: Categorise transactions in QuickBooks Self-Employed.
Keep me posted if you still have questions or concerns about navigating your QBSE. I'll be around for you.