I can tell you only a couple of things. See, It can get overwhelming very quickly and it expands in deep as much as deep you go in technology.

You should rather focus on what you NEED to learn, don't get caught in imposter syndrome. Because you mentioned you have a full-time job already, You only have a limited time. Juggling and switching into lot of things will affect your productivity.

For me, I evaluate first what I want to do and then search the technology available around it. Then, I make a list of what I need to learn and I start with one, gradually.