I am also self taught. I really started where you are: installing it and trying to troubleshoot. The more I wanted to personalize my system, the more I saw frequent terms and had to learn commands etc. just on the fly. It’s like full immersion learning. Do what the steps say when you look up how to fix something and you’ll get it. Learning a whole language isn’t necessary until you have to apply it.
I am also self taught. I really started where you are: installing it and trying to troubleshoot. The more I wanted to personalize my system, the more I saw frequent terms and had to learn commands etc. just on the fly. It’s like full immersion learning. Do what the steps say when you look up how to fix something and you’ll get it. Learning a whole language isn’t necessary until you have to apply it.