The more you upgrade the more money you will get from hitting parties etc. Asking to be volleyed does not get you much money Go on forums -> Guide Section -> Guide To New Players by Jerk
Jobs only get you so far. Once they start saying "extremely difficult" and you start failing, you should stop doing them. At this point you should either party for money (join a club to do this) or farm (there's a farm list in the strategy section of forums). Make sure to have 15m x your kcs in tutors to make max plunder.