I'm currently working on this. In 2016, I saved 60% ($36,000). In 2017, I saved 65% ($42,250). This year, I am working on saving 70%-75% ($46,200). I'm 23 and planning on transitioning from devops to a software engineer role by 25-26 (working on the skills I lack!). I never need anything and am extremely content! I think I might be able to get to 80% but that will cut into some things, so still working on 75% for this year.
Start at say 25 and that's going to give you a much better than 1:10 chance of being able to very comfortably retire someplace cheap. If nothing else 1 year of work = 1.5 years not working, but at 4% return (over inflation) and 15% investment taxes you can retire in 15 years.