DSSRT Tests and Cramming for a CLEP

[jm82792]

I'm 17,
I've done 2 Cleps so far,
Sociology (58) and MicroEconomics(53) and want to think of what to do after CLEPs.

I know they are considered difficult since it's replacing "real"
college classes.
Anyways am I a little crazy if I prepped for a DSSRT while I'm doing CLEPs,
and take one every 3 months ?
I'm assuming the prep for them would involve a couple thick and recognized books on whatever subject I want to study for and Instacert to support my efforts, well and maybe a standardized test of some sort to know I'm ready.

And another question,
I just found out from two of my friends(more like acquaintances) are flying over to Honolulu(where I have to taker my tests, there is is no place to take tests on the Big Island) and I only have History 1 to the point I can pass today, although I want to polish it up(I get 80% correct on IC) some to get something better than like 55 since the test is always somewhat different.
Long story short I'm saving money on a taxi,
airfare, I would otherwise take a parent with me since I'm pretty visually impaired(so I don't have the guts to do it by myself yet) and I want to make it worth my while with this cheap yet short notice trip.

I broke the ice in Introductory to Physiology,
I've read the whole book almost twice,
however I have not absorbed the terminology

Could I cram(well 4-6 hours a day for physiology then like 2 for history) it and pass it?

Do you think that's a possible goal for somebody who has never known anything about physiology to pass it with two weeks with my current situation?