What? And, more important, why?
Comparing yourself to others is not a game you can win. You can only lose. So don't play.
(What do I mean by "you can only lose"? Let's say there are 100 people in your neighborhood. If you're doing better than 90 of them, you're not looking at them. You're looking at the 10 who are doing better than you. And if you're doing better than all of them, you're not comparing yourself to them at all, because you're not there any more. You've moved to a better neighborhood, and you're comparing yourself to your new neighbors. "Neighbors" can be real, or it can be a metaphor. As you move up, you start comparing yourself to new people, not to the same old people. And so you're still not a "success", even though you're on your third or fourth group of people that your comparing yourself to.)
As I said, don't play that game.
But even if you're playing a different game, even if you have a fixed standard of what you want to achieve, why are you pressuring yourself to achieve it by 30? Why the artificial deadline?
Don't judge who you are by external achievements. Don't put your identity in them. Find out who you are, apart from what you do.