I’ve connected to hosting, but some of the features in the control panel are completely unclear to me. For example, I can’t figure out how to set up domains and certificates. Does anyone know where I can best learn how to work with the control panel?

I had exactly the same issues when I started. It feels like there are so many features, and nothing makes sense. Recently, I came across an article called "Empower Your Hosting Experience with a Comprehensive Control Panel" https://www.bestfreewebresources.com/empower-your-hosting-experience-with-a-comprehensive-control-panel , which helped me organize my knowledge. It explains the main functions of the control panel in a very straightforward way, including how to handle domains and certificates. I highly recommend checking out the material; it really speeds up the learning process.