Wow. Not sure why you felt it necessary to spill your guts out to sdn on the internet. Regardless, I've skimmed you rant, and I would summarize your plight as most others; "I wanna go to med school cause it seems to be my lifelong passion (that only I know of), and I'm gonna try to do it with so many roadblocks in front of me".
There are over 40,000 applicants each year to this nation's ~130 med schools. All of them are smart, probably have drama in their lives, and believe being a physician was their life long calling.
You were in finances? The first think I would ask is, at 32, where did your sudden change of heart come from? Really? The physical and biological sciences are a very unique field and scientists are a different type of people with unique characteristics. Business people are themselves opposites (I know, I live with a lot of them). You must first ask yourself the base question that is more important than the typical "Feel a calling, always wanted to be a physician" chorus: can I become a scientist, adopt their way of life, and learn the equations of life well, but also learn to apply them?
It's never too late to change careers...but it is more reasonable for some older PhD in a science field to want to change to a clinical MD route, than some older financial adviser to get up and change to a science clinical career.
As the post above says, you must LOVE what you do, and not do it for simply the $$. Otherwise it is a fraud and you will be equally as skrewed. To love what you do, you must study it, be good at it, and learn to communicate with it on an intimate level....can you and science become intimate friends? Or will you and science be only acquaintances who talk only when convenient?
It better be the former.