If you live anywhere in the developed world, and you are reasonably able bodied, you can certainly save sufficient money for your long term needs.
there is maybe 1% of the population who can't do it, for everyone else it's a choice.
Just setting aside 25% over time adds up to a sizable amount.
Everyone will die, despite great medical advances over the past century. Someone who lives past 5 and doesn't die in childbirth, or an accident - only got a couple years of life expectancy. You should be thinking of saving money as this is something we're going to spend in the future. The goal is not to get the most money on paper. The goal is to... Well, you figure out your own goals. I don't know the right answer for you, but to try and enjoy life with the money you make.
And not all jobs are a slog. There are bad parts about every job, but there are a lot of jobs that people enjoy, at least on the good days. People also often find that they enjoy talking to other people and a job gives them lots of reasons to talk to other people.
Retiring could be good but there are also a lot of people who don't know how to keep their life busy and they end up dying of boredom not long after they retire.
The mindset of people seeking early retirement is not compatible with the mindset of a person who wants to accumulate wealth endlessly; saving until you have enough is the whole point.
Otherwise you end up with what's called lifestyle creep, if you leave it into your bank account you will always find something to spend it on.
It does depend a bit on how much money you were making, but I'd guess it applies to most here.