It's hard not comparing yourself to others, even if it is the "right" way to go.
I'm also 30 years old and had my "oh my god my time is running out" break down.
I've stopped working (as little as i did), started college at 19 and stopped, and I'm feeling way behind...
Most of the people I know either lead "normal lives" or at least somehow manage.
When I find myself avoiding again my whole self esteem is in shambles and I feel like I'm a failure.
Hopefuly it's just another phase , but who knows.