You need a reality check buddy
I don't care who the fuck you are, playing CARDS will NEVER ammount to the stress half the (real) jobs out there give. Can you imagine being a doctor and having one of your patients die because you did something wrong? Being an engineer and having an entire city waiting on your bridge or building designs? Being a rocket scientist and being responsible for taking man off of our planet? Yeah but poker is pretty hard you're right.
The months I played poker professionally were probably the worst months of my life, and I have worked a number of stressful and important jobs. It's not really that poker is MORE stressful than everything else, but it's stressful in a different way.
Anyone who plays poker for a decent period of time will eventually run into a number of situations where you have worse luck than you had ever imagined, for longer than you imagine possible. You'll play the best poker of your life and lose 50 buy-ins because lady luck decides to shit on you and you can't ever win even when you're the 90% favorite. These bad runs are statistically rare, but once you start putting in 40,000 hands a month then it's pretty inevitable that you'll find them.
The depressing part of all this is just the feeling that you have absolutely zero control over whether you win or lose money when you're getting crushed this badly by statistics. In every other job I have had or will ever have, my success is a direct result of my expertise and effort. Most of the time poker is the same way, but when it's not you will want to become an alcoholic.
I am in no way trying to compare a human life to money, but this is the best analogy I can come up with to describe what I'm talking about: Imagine if you were a doctor, but even your most perfectly executed surgeries always had a very real chance of your patient getting struck by a fucking meteor midway through or shortly after.
The jobs you listed are certainly very stressful, but that particular kind of stress is one that drives me (and most people, I believe) to work hard and succeed. The stress in poker makes you want to curl up in a little ball in your living room and drink yourself retarded.
The suicide rate among professional poker players is astronomically
high for a reason.
TLDR poker sucks worse than you think.