We are evolved Hunter Gatherers, our DNA that controls our impulses and instincts have changed little in millennia, it has changed little on the things that make us happy and thrive, we are who we have always been from another time, but we live now in the constructed realty of our own making  

We live in a World that is increasing putting demands on us that has resulted in poor eating, exercise that must be planned, poor mental health, a general dissatisfaction with society, with our leaders, with how we care for each other and our precious environment  

I think as a species we have drifted far from our ideal place, we are trapped and have forgotten what we are

Please let me know your thoughts on this topic if any

Hunter-gatherers actually had better lifes than the first farmers. They had to work a lot less and got far less diseases. However, agriculture became a thing out of necessity. There's only a very limited number of hunter-gatherers (like a few million at most) that can live on this planet.

Interestingly that is true

It's also true that many things we have done has improved our survival, and by extension our population, but we are still Hunter Gatherers by nature 

As Hunter Gatherers we had more time to ourselves, with our families, things were at a scale we easily understood, nutritionally as well we were better, before agriculture people were taller with better teeth, we rapidly decreased in height and tooth health at the start of agriculture, material wealth and powerful individuals with armed groups they controlled started to become a thing, "protection" tax became a thing, money lending became a thing, better weapons to kill and organised thugs (armies) became a thing, life just got a lot more complicated, this has had devastating affects on mental health that can affect all generations directly or indirectly             

The break away from our Hunter Gatherer past into Agriculture had a profound affect on our phycology 

Video on a study done by Princeton University 

With a life expectancy between 21 and 37 years most of us probably wouldn't have more time to ourselves and with our families, even with a few less hours of work per day.

https://en.wikipedia.org/wiki/Hunter-gatherer#Social_and_economic_structure

Researchers Gurven and Kaplan have estimated that around 57% of hunter-gatherers reach the age of 15. Of those that reach 15 years of age, 64% continue to live to or past the age of 45. This places the life expectancy between 21 and 37 years. They further estimate that 70% of deaths are due to diseases of some kind, 20% of deaths come from violence or accidents and 10% are due to degenerative diseases.

This is simultaneously true, and untrue/not relevant.

Humans are extremely flexible and adaptable. Ultimately, your DNA will only get you to the stage of being a baby. Where you go after that is not particularly related to genetics. Would a caveman/woman's baby be able to grow to live in today's world? Probably. The different is education.

Life expectancy is often brought up, but is rarely talked about how its measured, those extremely low life expectancies of Hunter Gatherers include deaths of children under 15, this of course pulls the average life expectancy down dramatically, if deaths at child birth and young children are taken out of the equation life expectancy of Hunter Gatherer Adults is comparable to modern humans    

Hunter Gatherers were subject to strong evolutionary pressures, any issues with the young were quickly weeded out, but once sexual mature was reached, the remaining adults would have a generally long life ahead, comparable to modern humans, growing taller with better teeth than post agricultural populations up until about the 1800's 

A tree can grow dwarfed and twisted high on the side of a mountain, but it is not thriving  

Humans are behaviourally flexible if needs be, but our resting state would be the one we are most comfortable with, the one we are evolved from, similar to a domestic Horse, it learns to adapt pulling a cart, being flogged, and ending its day locked in a pen or barn alone, but its resting (natural) state is one of a far different environment, arguably the horse would prefer it if the chance was presented, and arguably humans could be happier in our natural state as well, few of us would even know how that might feel, almost all of us have no concept or experience of what our natural state is

Like a domestic pig left living in a small dark pen its whole life, the freedom of the open forest may now seem alien and frightening, it may now even prefer the pen 

We are a self domesticated species, almost no wild humans exist, an animal can get quite use to domestication as it knows no other course