We've got troubleshooting steps to help you fix your software's performance, Doc.
I've seen that you've posted twice in this forum with the same concern. Don't worry, my colleague has already provided a solution for you to guide you in managing transactions. Feel free to visit this link: https://quickbooks.intuit.com/learn-support/en-uk/other-questions/does-everyone-find-the-small-busin....
Furthermore, I'm including this reference to help you review and manage your financial entries: Categorise transactions in QuickBooks Self-Employed.
We'll keep this thread available for any additional queries you have when managing these transactions in your account. Have a good one!