So I spent a week in training, and was able to obtain RHCT Certification.
Doing the RH300 course showed me how much I didn't know by just learning Linux on my own, and it's been a while since I have been in a structured classroom to learn something new.
It was quite interesting. Now I want to setup a Linux environment at home on my ESXi host, and see how well (or bad) I can break or make it.