I have to chuckle a bit reading this
I agree with the post above about only 10% of "pre-meds" actually sticking with it hard enough to make it to med school. Those are the people that will actually become doctors, and for most of them, they wouldn't accept anything less in life. Therefore, the idea of making it to med school and NOT becoming a doctor, doesn't exist. Once you get in to med school, you just step up to the plate. Yeah it's ridiculously hard and overwhelming at times because of the amount of information. But, if you are really cut out for this career, you are interested in most of what you are studying, and almost enjoy it, or at least accept that it's what you have to do and learn to become a physician.
Here is some great financial information about medical school. Specifically the Debt Manager PDF.
https://www.aamc.org/students/financing/