If you choose to live frugally, it is possible to get out of the rat race sooner than later. I always had to be careful because of my health. Never being physically strong enough to do eight hours a day and the commute I could work a ten hour day and take the next two days off. I arranged my life and supported myself under those circumstances. I played the cards dealt and never had to beg anyone for money. I kept a roof over my head and food on the table. It was a hard thing to do but was possible. The trick is to know what is truly important and really necessary. I know that I need a bed, a table and chair, a place to cook and a workable bathroom. Everything else is superfluous. I have lived with as little as that and with so much more. More isn't always better. Time is more important to me. I like to have the time to be a human being, just hanging out not doing much of anything. Life is for living not just for working and commuting. It is a delicate balance. How much is enough? Don't wait until you have enough, start having fun now and enjoy the ride. Use your sick time and vacation days. Take a mental health day. Start by taking a mini vacation in a 3.5 stars hotel with a spa tub will work wonders, even if it is only an overnight.
For me the definition of having enough is having a cheap, clean place to live with plenty of good food on the table with a half a glass of red wine. Once I can pay for that, I don't care about anything else. I traded time for money and got my life back. You could too!