I understand what you feel, @ChristyV. I've come to help you manage depreciation in QuickBooks Online.
Calculating asset depreciation is a tricky process because they aren't depreciated automatically by the system. Instead, you can manually create journal entries to track depreciation.
For a more detailed step-by-step procedure, you can review this article: Depreciate assets in QuickBooks Online.
While doing this, I recommend consulting your accountant for guidance to ensure you track them seamlessly. If you don't have one, consider visiting this link to look for one in your area: https://quickbooks.intuit.com/find-an-accountant/
I'm more than willing to listen if you have any other concerns about handling your properties. I'll ensure your needs are taken care of. Keep safe always.