I haven't lived!

I'm 21 years old, about to start my final year at uni and - despite what I had previously thought - it seems I haven't lived!
I've travelled round 13 European cities in one month, I've been in a hot air balloon many times, I've flown in a microlight, I've taken part in more than one ballooning world record, I've played 3 different musical instruments, I've reached brown belt in Karate and I've lived and worked in Paris for 10 months to name just a few things I've done.
However, despite this, I do feel that I have failed. To start with, I weigh just 9 stone. This is no kind of acheivement when you see that the girl in this BBC news story weighs 34 stone and she is both younger AND shorter than me!
The second example of how little I've done comes from a young lady my mother met the other day. This girl was 20 (a year younger than me) and, it seems, has done far more than I have. She is already married, for the second time, and has not 1, not 2, but 4 children, the first of which she had when she was 13.
I look at these two people - both younger than me - and realise how much work I've got ahead of me.
Still, there's about a month left before I get back to uni - I'd better get started!