Finding ones purpose in life can take a lifetime sometimes. Some people seem to know early in life what they feel they were born to do. I think the point is to live the success principles and your purpose will be made known to you sooner or later.
Also choose what you feel you want to do at this time and go for it if somewhere down the road that changes or you feel that your purpose presents itself to you and it's different then what you are doing you can always change course and go after it then.
End The Fat
70 pounds lost and counting! Get in shape for the revolution!