YOU are not Marc Zuckerberg. I, too, am not Mark Zuckerberg. Only he is celebrating becoming a millionaire (no, billionaire) overnight. Well, technically, he is just collecting his due after eight years of hard work. Whether he deserves it or not is a whole other story and not something I am getting at. What I am getting at is that he is a one in a million story. You probably have a better chance of going pro as a basketball player than matching what Mark has done. Actually, you will more likely be struck by lightning than have either of the above scenarios happen. It is an outlier and shouldn't be considered common place. Nor should you make any major decisions based on what Facebook did. Learn where you can but do not consider them your peer.
Without sounding all grim, I want to just reiterate what I told a ton of my portfolio companies back in 2000. There will be wild successes and overnight millionaires. Keep at what you are doing regardless. Don't get distracted by them making it and you still slogging away nights. If you truly believe in what you are doing, you will continue to do so. The world goes on and your chance will come. Or not! That's the way things roll. The start-up world unfortunately produces far more failures than it does successes. Only those companies which attain the sweet spot of a team that jells, the right market opportunity, optimal timing and some unicorn dust go on to greatness.
Nevertheless, there are lessons to be learned from Facebook if you are a start-up. They were not the first social network. They did not have a senior founder team of experienced players. They weren't originally in Silicon Valley. There was a ton of founder fallout (see the movie). Hiccups in terms of regulations and roadblocks came up along the way en route to IPO. You probably get it by now. It was not a walk in the park to their public listing and it only seems easy in hindsight. This is the reality behind Facebook and every other start-up.
"It's usually simple but never easy!"
As long as you focus on that and adapt to your situation you will increase your chances. Just don't get blinded by the light of Facebook's wealth generation. Focusing on that will in no way help you achieve what you are aiming for and at most will only make you bitter.