I think you should stop whining (
just joking) and start working on your essays and general applications. A 730 score is pretty good, I myself scored 680 a few days ago even though my optimum aim was 700. And I only studied for about 2 months for that score. No GMAT score (even 800) can guarantee you a place at a school and I think yours is just great - if the rest of your details are good you'll almost certainly get into your dream school.
Oh, and congrats on your score!