Hey Dktenid,
It is not a question of age or life experience, but only a question of what you want.
Let me give you 2 different experiences:
One is a woman I heard of who was called for enrollment 13 years after having succeeded a european competition

It means, even if you succeed, it is no warranty to get in. That's why, if you feel it another way, do it!
The other one is a man I personally know who tried no less than 5 times an EPSO competition and who has finally been acting as an Admin for a couple of years now...
Just think about it
Your fab