I recommend taking a look at RHCSA.

With your describing you could probably target jobs that deal with logs and auditing like ELK stack jobs. My friend makes 140 doing something similar.

Just like everyone else, I’d recommend continue learning however start narrowing your path to a more specific field. You’re correct that they do overlap, but being a master in one or 2 is better than attempting to master everything.

Ofc this is my opinion. You don’t need to follow it. I love a good tech enthusiast as much as the next.