I created an account just to chime in on this one. First off, don't be fooled by what everyone else seems to have going for them. The truth is that there is often more going on behind the scenes than people let on.
I have a friend who graduated a year after me, but we ended up working at the same company and with almost identical salaries. However, I ended up working another job on the weekend just to pay the bills. He went out and bought a BMW, would go out to bars every weekend and take trips to Vegas 3-4 times a year. I finally asked him how he was doing it and come to find out that his parents had been paying for his student loans, his cell phone and numerous other bills.
Everyone out there is going to have a different story, but all mustachians know something others don't, we're playing the long game. I've talked to this same friend about my desire for FI and while I have plans to retire early he keeps the mindset that if he just had X (nicer car, a house, etc) that it's going to take his life to the next level. We've both been experiencing increased incomes, but while I've been trying to trim as many expenses as possible, he's adding more (buying a new motorcycle, more extravagant nights out, planning a big home purchase).
The goal of all this is not to bash on my friend, whom I love dearly. But it's to illustrate that while the rest of the world may seem to "have it all", keep in mind that most of them will be working much longer than the average mustachian to "keep it all". At the end of the day, you have to remind yourself that you're making the right decision for you and while you don't have all the shiny stuff to show for it, you do have comfort in the knowledge that you're investing in the future you want and it'll be here sooner because of all your decisions now.