linuxmemes

If I was in your situation, I would try installing openSUSE or Fedora Linux on a computer where you don't care if the entire disk gets wiped occasionally, using a flash drive you also don't care about getting wiped occasionally. They probably have sufficiently comprehensive installers and installation instructions for you to succeed in using one of them, and if you don't care about the content of the disks you use you'll be more willing to experiment with the installation process (even though it's unlikely your computer will work worse due to trying to install a Linux distribution). If you use a computer that has become slower and less usable than you'd like you will probably be pleasantly surprised by the results!

Also, you can back up your product keys and prepare a Microsoft Windows installation disk if being able to go back to Windows 10 makes you more comfortable with experimenting.

Overall, Linux enhanced my ability to to get productive work done, and also the opportunity to experiment and learn more about how to use computers to solve problems. I think learning how to use a GNU operating system is a good long term investment, though if you still need to keep around at least one computer that runs Microsoft Windows to protect your income I won't disparage you.