I kind of wonder if part of it does not just come from our culture and living in an affluent society with a lot of freedom. In the days when the Bible was written, men usually worked at whatever their fathers did or farmed trying to grow enough food to stay alive. Women raised kids and did chores around the house. When it came to marriage it was all arranged so you did not have to worry about the things we worry about now...you just had to worry about staying alive and not dying from disease or starvation or being sent to fight for your country. We are blessed that we have so much freedom but all that freedom causes problems, somtimes it would be easier, I think, if everything was decided for us. I guess you should just do what you feel you like the best and are good at and would not hate. Then do it with all your might as unto the Lord.