So you do think some people are born with critical and clinical thinking? Like, they say "mommy" first time and right after that operate with differentials from then on?
In this case, there's news for you. It is not so. Critical and clinical thinking can be developed at pretty much any age. But there is only one way to do it : daily, merciless work. Like ballerinas develop their turnout and flexibility through daily painful exercises, you can develop your brain.
There is no other way to do it than "read, observe, memorize, think, ask and analyze", never (and I mean this: NEVER) allowing others to do it for you. Forget about "ijustfollowtheorder", "iamjustdoingmyjob" and such. Think about your every action, every order, every drug you administer. What it is for, what do you expect, what might happen if... all those questions. If you do not know answer, do not go to sleep till you find out. And remember that every patient tells you a story to think about.
It is entirely possible that the your study format is a part of the problem and this is ok. Not everyone designed for accelerated program. You might fare better in traditional class, and that's all right.
Things which are good for brain and for you overall:
- healthy weight
- regular moderate exercise
- enough NATURAL sleep in DARK room
- as little sugar, quick carbs and alcohol as possible
- no smoking
- Mediterranean diet (based on veggies, fruits, beans, seafood, milk and olive oil)
- learning a foreign language
- singing choir
- playing music
- listening to music