I'm still young (ish) but have always been quite sure of myself but after listening to get the edge by tony robbins(not usual for me to listen to this type of cd) it just puts things into the right order. There is not just one purpose for me but many but by listening to that cd was what made me realise. One of my main things is to bring the best out of me and the people around me.
It's the same purpose as all creatures on this planet.. to procreate and keep the species going...
As a human and in posession of reason I can choose not to do this but that ^^^ as far as I can tell is the main reason for most of our existence at a basic level and everything else is just padding.
The reason I ask is I don't have a real idea. I have a general idea... Like offer value to people and improve the quality of lives of people around me.