I think it has more to do with the life circumstances you're in rather than with age.
This is 100% of what I needed to be reminded of. You are so right. I have considered life like a train ride, some parts are beautiful and other parts through slums and bad areas. (and eventually the train pulls into port that I call home) The circumstances I am just coming out of is within one year helped BOTH parents pass on in home hospice with me a caregiver. Just me, no older sister like all my friends had to help. The added stress is I was/am out of work and it was really hard to feal peace in the moment although for sure I did, I made sure. And when I needed more mental reinforcement I used DMT, and when I needed sleep the occasional diazepam. So from there is where my current opinion comes from.
Also wife is not well. Mentally and heart issues. I have no idea what to do. And been married 22 years. Trying to be kind and understanding, but anyone who has been married a long time knows that sometimes that backfires and different strategies need to be implemented. And that may fail.
Money scared the crap out of me as I was caregiving and watching my life go into the toilet. And I can say both parents difficult and immature about it. So I am working on leaving all that in the wake as the train rides.
I had more peace at 50, but life was rolling along without issue and crisis. But we all know how hard it is to find peace in crisis, although we absolutely must!
I may come back in a year, or a few years and be much more peaceful and content. Hopefully the train heads into calmer and prettier landscapes.
I can honestly say as we get older the stresses of life does build up in the body. Much more than when we are younger. It take a week on a beach to calm ourselves at best we get to do 5 minute calming breathing exercises which don't work when the body is spun from years of stress.
Having something to look forward has always helps, But I admit I am a nervous wreck traveling and don't get calm till I am where I am going and settled. Meanwhile my loves the preparation and can't understand my stress.
Lastly as I lived off credit cards as I took care of my parents, my father had money he wanted to save. The man was months away from dying and would not dig into his investments. So while I will get an inheritance, it just makes me break even. I have heard of people getting notice out of the blue that they inherited money. Me on the other hand more than earned it and helps me catch up BECAUSE of being a caregiver.