Hello, I’m Virginia, a fellow user like yourself.
Sorry to hear you’re experiencing problems.
I recommend an in-place upgrade repair.
In a nutshell you just download the media creation tool, run this by double clicking on the file & choose to upgrade/install now or if you are creating media on another PC, you download the tool, run it by double clicking on the file & choose to create media for another PC, then insert the Windows 10 media (USB/DVD) in the problem PC & run setup from within Windows.
You can also download the Windows .iso, right click to mount it & then double click the setup.exe file to run it.
Follow the instructions & ensure keep everything/keep apps & files is automatically selected. If not then please do not proceed otherwise you’ll lose everything.
Please note a repair install is not a reset, this is a last attempt at repairing a PC without a clean install. If this fails to repair the problem then usually a clean install is required.