My job can be very routine/mundane, but also crucial to be knowledgable. The important thing to know is what "signs" to look out for. Those are surface stuff and easier to know than detailed knowledge. I don't know how knowledgable my fellow coworkers are but everyone seems similarly mediocre to me.

I was knowledgeable enough to pass the board exam. I've been having a desire to put in 30 minutes a day into mastering my field so I am totally confident. So I started the review course back up and basically only got 1 out of the first 3 questions right. The other two I had no idea.

For example: "the term tunica aventita refers to:" I have no idea, and almost don't ever remember hearing that term. To be fair in my job it's never mentioned and not really relevant.

Then there's anatomy questions like which artery do such and such sections of the heart get blood from. To begin with even back when I took the exam, I had a lot of trouble remembering which artery provides blood to which section (because there's a decent amount of sections to remember).

My brain aches just re-reading the section names and it makes me wonder if I'm dyslexic or something or if it's a normal ache.

I'm afraid that even if I study 30 minutes a day, the sections and information will still slip away because maybe it's not that important.

All I know is that I won't want to be unprepared. I want to be an expert and very smart. I think just 30 minutes a day for 10 years or less would make me an expert and I would still have 20 years left in the field whereas I might be stupid/mediocre for all 30 years.

Any advice?