I do want to do the Child Theme, but all the steps necessary seem to be out of my league at this point
Here you go:
https://www.ads-software.com/plugins/child-theme-configurator/
All of my own struggles with the details of making Child Themes came to an end right after recently discovering that plugin. First make a backup copy of whatever theme file you have edited, then restore that file in your Credence theme. After doing that, start the configurator and select Credence as the Parent, then click ‘Generate/Rebuild Child Theme Files’ and you will have one. After that, move ‘@charset “UTF-8”;’ to the very top of your Child Theme’s style.css and then copy your previous modifications to below everything else there and you should be good-to-go!
Edit: At that point, if you wish, you can deactivate the configurator and just let it sit there waiting for updates until next time.