I've been on here a little over 2 years. I got started with YNAB fall 2013 to shore up my budget. After getting that under control I found MMM and jumped in. My net worth was a little over $260k, but I was saving barely 25% and at the time I was deficit spending down my checking account further each month. $150k of my net worth was sitting in a savings account and I was losing anywhere from .5% to 1.3% on 20 different mutual funds on $50k of my net worth.
Fast forward to today and my net worth is about $520k with a 55% savings rate, a Vanguard three-fund portfolio, no cable television, cell phone bill cut by 2/3s, no more gas guzzling truck, and at least 1000 pounds of personal property sold off. I travel hacked a Southwest Companion Pass and earned a few hundred dollars in credit card cash back.
My FIRE date is a moving target right now whether or not I make it to the pension point, but I'm confident I'll have enough saved that if I have to start a second career it won't have to be for too long. Back when I used to talk about retirement it was "I don't know what career I'll pursue after I hit 20 and retire." Now, if I make it to 20, I'm done.