Hey man,
Not to be discouraging but you seem in bad shape to go, plus you say you don't do well on standardized tests, well med school is all about standardized tests. Two why are you so hell bent on going, you can have a very nice living and more time with your wife plus be involved in health care if you go be a: PA or a pharmacist. It takes a lot less school, the job can be very satisfying and it is not worth it to become an MD if it is going to ruin your life. You should only become one, if you can handle it physically, emotionally and mentally. It is very draining and if you go to it, just for the degree and be called a doctor you will be in for a rude awakening. Also talk to some doctors who have been in the game for years, not some of these pre-meds who are still in la-la land and don't even know what it is to be a doctor. Best of luck. Also not becoming a doctor is not the end of the world. You just have to figure out, why do you want to go so badly and if the reason is too strong, then I am sure a door will open, if not, do something else and move on. Later champ.