Christopher Morley said something to the effect that "there is only one success, and that is to live your life as you choose to live it.
Success comes from learning to make good choices -- of a career, a spouse, a savings plan, an employer, etc. The other factor, for me anyway, is figuring out what you want and what your strengths, gifts, talents, preferences and priorities are.
Oh, to have been a less passive and more proactive young person! But, better late than never!
Regards,
SandraC