Well... for what it's worth, I really agree that you need to scrap this whole thing.
If you follow the flow, it goes:
1. Doctors are AWESOME!!! So...
2. I decided to be a doctor for 3 seconds, then realized how crappy the medical system is... and despite the fact that the criticisms I have about the medical system really had no impact whatsoever on what I could do as a doctor, I gave up my lifelong dream after being a candy-striper for a few seconds because now I realize that since the medical system sucks, DOCTORS SUCK and...
3. Found a new lifelong dream of being an administrator. Granted, everything that sucks about the medical system is because of administrators, not doctors. Which explains why I don't want to be a doctor, I want to be an administrator. Of course, most of the world thinks of administrators as being worthless overhead who contribute nearly nothing to the missions of the organizations they work for, but...
4. it makes me perfectly suited to be an attorney!
What in the world did the paragraph on wanting to be a doctor do in this essay? I mean, it's perfect if then, indeed, you DID become a doctor. As is, though, it makes you sound like somebody who choses their life's work carelessly and then discards it hastily.
Re-work this sucker. I don't see anything in there worth keeping.