I've seen nurses that don't seem to have much grasp of the system they work in everyday, so that's not saying much.
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I agree positive thinking, meditation, breathing exercises, etc. are all crap.
But certain things, like a habit of sleeping in too late in the day, eating junk, low vitamin D, not going outside, these will f**k you hard over time and in the subtlest ways. Of course this is meaningless if these don't apply to you.
And I'm not bashing you over something that's working for you, but denial is underrated, imo......It is a skill, and I think a lot of people would be happier if they worked at identifying and eliminating the harmful beliefs and patterns they've accumulated. Even if you have some neuro/organic problem.....I see autistic people and schizophrenics, bipolars, etc....they get these jaded thought styles that co-occur with their illness and make them miserable and unpleasant even when they aren't having an episode. A base resilience to a lot of the crap we see and even what we tell ourselves can go a long way.
I'm not completely anti psychiatry, but the topic is very personal for me because I've had such a long drawn-out series of ineffective and inappropriate treatments, so the mere thought of anyone going through shenanigans feels to me like someone getting falsely convicted of a crime.