http://www.mrmoneymustache.com/2012/01/13/the-shockingly-sim...
Start reading more from there and remember it's your expenses more than your income that matter most. Also remember he turned the dial quite far.
And this page is also quite good. You don't have to go as extreme as MMM, and doing so would burn out a lot of people.
https://www.reddit.com/r/financialindependence/comments/58j8...