@BustyWench A fresh install of Windows does fix a lot of issues, but if you want to try an intermediate step first, a repair install will allow you to preserve your user files:
https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html
If you're interested in doing some hardware monitoring, I'd be happy to look at a log. Download hwinfo from here:
https://www.hwinfo.com/download/
You don't need to install anything if you don't want to; just choose the Portable version, unzip it, and launch it from Downloads or wherever you want. (If you would like to install, be sure to click the button for hwinfo itself, not for lansweeper.) Restart your computer, again offline and in a clean boot, and don't open any other apps. Launch hwinfo, choose "sensors only," and click the icon that's a sheet of paper with a + sign to start logging. Save the file to your desktop for easy access later.
Wait five minutes, then launch Sims 4 and play until it freezes. Click the same button to end logging. Then upload the log to a third-party free filehosting site and link it here. Please leave it in .csv format, or if you use OneDrive to share, please compress it in .zip format instead.
And don't worry about the late reply. Some things are much more important than troubleshooting a game issue.