I thought I'd respond to this, but I wouldn't worry about comparing yourself to others. Success isn't a one size fits all thing. For some people it may come later, but that same success may end up being more than the people who were successful first (if that makes sense). It took me an entire two years after graduating from university to find a job that fits me well, and I'm still not really where I want to be yet (don't have a house or apartment of my own yet), but I keep working at it cause I know that in a couple years I will.
Basically, comparing yourself to others just distracts you from opportunities and things you could be working on. I'll tell you right now that I'm never worried about others accomplishing things faster than me, and the lack of worry there allows me to make as much improvement as possible for me over time. It allows me to make as many shots as I can, and for me to put my all into everything. It's not for a lack of skill or anything else, because everyone has at least one thing they excel at. Even one of my best online friends, who doesn't believe he's good at anything, does have some things he is good at.
Anyway, sorry for the lengthy response, but just wanted to chime in because I care. Keep your head up. Life is a long, long journey.