I want to become a good developer so I can create my own things, I want to become a great marketer so I can promote them, I want to be awesome at design because I love creating and I want to become a great business person because that's been the most appealing my whole live.
Specialization is good says some people, you should have T-shaped skills says others, specialization is for insects says another.[1]
Is the above unrealistic, or does everyone have these goals in some way, but you have to choose what you're good at and delegate the rest/leave them for hobbies?
[1]http://en.wikipedia.org/wiki/Competent_man