<p>Ok first of all, take a deep breath.
Ok now that you have done that (at least I hope), you have to make sure that Stanford REALLY is your TOP choice. I mean do you REALLY want to go to Stanford? Does it fit for you? (This is in no way to discourage you from applying, it is a great school)
But many people apply to Ivies and top schools just because they want to feel the “respect” people give towards Ivies students but then they go and discover it is totally not what they want. Do some research on Stanford, go visit their campus, go to their administrative office and talk to them. A college is a match to be made, not a prize to be won.
Also it seems like you are too involved in school and nothing else, I mean go out, explore what you like, grades are only a quarter of what they look at. Top colleges love ECs</p>