4 years ago I was stuck in a job I didn't like, and I lived my life waiting for the weekend to relax and recharge the batteries. Then a day I decided that it was enough.
I learned what to do in order to replace my job income, and regain my personal and financial freedom. Nowadays I teach students how to mock my same journey.
Everyone can quit their job if they want, and become more flexible with their time. You just need to know how to do it.