Why in the world did you retake the test after your second exam? Contrary to popular belief on this website people do become MDs with 27s and 3.8+...actually to tell you the truth I know plenty at several state schools...even better I know several Hispanic friends who have lower MCATs than a 27 at a couple of my state's schools
If you can find my older post, I jumped like 9 points in a year after finally buckling down and studying for the test, and I started much lower than you did.
The only thing you did wrong, in my opinion, is listen to all these kids on here (most of whom are lying) tell you about their great 40s scores and feel that your second score was inadequate. This ended up costing you dearly in the end. If you learned anything from this incident it's that you need to be confident and comfortable in YOUR own skin, and not strive to like others (say) they are.
Lastly, the MCAT is a BS test, we all know that. In all likelihood, you just got a monster of a test. It happens. Practice, practice, practice for a year and go in and take it again. If it is a monster again, void. If not FEEL COMFORTABLE WITH YOUR OWN ABILITIES and submit the damn thing and hope you do as well as you would like. No one here is going to tell you to stop following your dreams, if it's meant to happen it will. No one here is an adcom, and so no one can tell you what an adcom will think.