I'd say don't sweat it. Definitely don't rush to solo before you're comfortable doing it. Most people that I know didn't solo nearly as early as 11 or 12. Most people do it in more like 20-30. There are a million other factors that come into play. How much you study on your own, how good your instructor is, how well you brief/debrief flights and maneuvers, how often you take a lesson, etc. Just like sex with your girlfriend; when you're ready, you'll know it. And invariably your first performance won't be your best.