I don’t mind the questions at all! I have InDesign, but haven’t used it in years. I just use Photoshop now. I’ve been using it for a long time and there’s a ton I still don’t know. I just started by using a few tools that I understood the basics of and then as I tried more tedious work, I found better ways to either use those tools or figured out that another tool was available that would do the same thing but easier. I also search youtube once in a while to figure out how to accomplish specific tasks.
I typically use my mouse for borders and layout but i also have a cheaper drawing tablet for artwork that’s more delicate (but I’m not very good with that yet). Just to change that ribbon, I’d try a Lasso tool to select it and then use a Layer Adjustment like Color Balance or Hue/Saturation. I have an older version of PS so not sure if that helps LOL.