I understand where you are coming from but I know an extremely wealthy person who puts himself under stress concerning investments and no matter how much I try to explain this should not be a concern of his he makes it stressful. It's in his mental makeup. Sad.
We're all different and feel stress over different things and worry in different situations. I was a constant worrier over anything and everything I could think to worry about until I met my wife and was cured. I think a lot of mine was not having balance in my life.
To me the key is recovery. If something stresses us, what do we do, how quickly do we recover from it. I've learned, although sometimes still require her help, to refocus on the good.
I have what I would call "concern" over many things, over people and their situations and how they'll deal with the challenges they face. But I have to keep that under control for my own welfare. Do what I can but accept that's all I can do.
the serenity to accept the things I cannot change, Courage to change the things I can, And wisdom to know the difference.
Such a simple statement but something we all need to keep in mind.
As to stress, we have some friends we greatly admire who raised three beautiful daughters while working very low paying manual labor jobs, most of the time at least three between them and often two each. We first met them about 3 years ago. I know they had to worry sometimes, but I don't think they ever lived stressful lives. They had faith. They knew they couldn't pay for college but they believed their kids would still get an education and be happy in life. They sure provided them with an incredible childhood and example. We find them among the nicest and most inspiring of our friends.
The biggest worriers I've known among those with money were often greedy. It never seemed like enough. They often had no need for it, but just wanted it. I was only an acquaintance with someone who took a horrible job to run a horrible company where lasting more than a couple of years was impossible. The inevitable happened and he called me upon his termination to see if I had any leads for him for a job. Now, his parachute from the employer who terminated him was over $30 million. He said to me he was just beside himself with worry that he wouldn't find another job, that no one would hire him. I asked, "Why do you care?" That shocked him and he said "B...but I need to work." My response was "Why?" Ultimately I told him it would happen but meanwhile work volunteering, work spending time with his family he'd neglected, work on enjoying life. It was sad but that's how he was conditioned. His self value was tied up in his job, it's prestige, and it's pay.