Hello Chilungamobasi,

                            This subject has been discussed before , without the 30 year time limitation though. The conclusion then was that satifaction ( of achievement) is in the eye of the performer, if you can allow me to say. For example some people might want to have a Phd by 30 yet someone else might want to save up and afford a ticket to the States ( where s/he will start from scratch) at 30. I kind of agree with this previous conclusion and therefore i would say it is hard for anyone to say what one must achieve by 30 unless he is talking about himself simply because he is in the best position to know what satisfies him. However, l feel  that one's life does arrive at maturity at 30, unless something extraordinary happens.

Njiba.