The screen freezes when I move the cursor

This behavior is indeed strange, robbinsj350.  

Sometimes your browser becomes full of site data causing problems in QuickBooks Self-Employed. To check if this is a browser-related issue, you can open your QuickBooks using an incognito or private window. This can help us rule out any cache-related issue that might've caused the problems.  

Use these shortcut keys to open: 

• Google Chrome: Press CTRL + Shift + N.
• Safari: Press Command + Shift + N.
• Mozilla Firefox: Press CTRL + Shift + P.

If it's working well, you'll have to go back to your regular browser and clear its cache. This will delete the accumulated junk files and enhance your browsing experience.  

When you're done clearing the cache, close any browser instances to complete the process.  

Incase private browsing doesn't work, I'd recommend using different browsers. They'll provide you the best and most secure experience with QuickBooks. For more details, please see this article: System Requirements For QuickBooks.

Additionally, you want to categorize your transactions each time you add one in QBSE. For the step-by-step guide, you can refer to this article: Categorize transactions in QuickBooks Self-Employed.

Reach out to me again if you require further information about the solution I provided or have any QuickBooks concerns. I'll get back to help and make sure you're taken care of. Have a good one.