苦恼死了！

Basically speaking,
you have to invest before enjoying any possible return.

The friend you mentioned is abnormal,
majority of the MBA candidates are not that lucky.

MBA itself will not guarantee you high return.
However, it could definitely collect more opportunities for you.
It is your capability of solving problem raises your figure.
Never say die. :)

May be I am too pessimistic.
Anyway,I must improve my capability!
Thank you very much!