What worries me, perhaps not the most, but a lot, is this: I have no idea what I want to do with myself career-wise. I think about why I'm in college right now, and I come up with the following deductions:
I am in college because I want to get a degree.
I want to get a degree because I want to get a well-paying job.
I want to get a well-paying job because I want to live a comfortable life.
I want to live a comfortable life because I dread living in poverty.
I dread living in poverty because I don't want to starve, or to be killed by a criminal.

In other words, the only reason I am in college right now is to sustain my life. I read an essay by Moritz Schlick, who vividly argued that the point of life is to enjoy the content of existence. But when the content of your existence is merely the means to the sustaining of your existence, it is vacuous. Thus you ought to do things for their own sake. But I cannot honestly say that I am studying what I am studying for its own sake. I just don't enjoy it, not even in the broadest sense of the word "enjoy" which might include the joy that comes from contributing to society.

So all I know is that I want to limit as much as possible the things I do simply for the sake of survival. If I could do something that I actually enjoy in-and-of-itself and happen to get paid for it, that would be ideal. But I don't think I could convince anyone to pay me to do the sorts of things I enjoy.