Re-reading your previous post and this one, I get the feeling you’re looking for easy answers and short cuts for jumping straight to the “fun & exciting” part of med school while skipping all the tedious studying required.
The truth—there really aren’t any. Miami is right–med school requires much more than passion. It requires a plan and discipline and persistence.
And the “fun & exciting” part of med school doesn’t really exist–at least not like you’re romanticizing it. You’re not “saving lives” through your own hands. Most days you’re spending 90% of your time trying to convince non-compliant patients they need to alter their lifestyle. (Yes, this is true even for surgeons. Have a good friend who is a surgeon and he complains he spends 85% of his time dealing with same 10% of patients who refuse to follow their management plans and end up in his office and OR over and over and over.)