PPST Testing....

I cannot TELL YOU how frustrating it is to study SO hard at something yet fail to accomplish it. I am taking the PPST on Thursday, and I just cannot exceed the reading comprehension standard. On SO many questions, the answers could go either way. I get repreminded if I select an implied answer, yet I get the question wrong if I don't consider anything suggested while making my choice. It is disappointing.....and discouraging. I am not doing terribly; I am averaging 60% and passing is 75%. That really is what is so saddening! I am so close yet so far away. What's more? It seems that the more I study and apply effort, the lower my score results. This is heart breaking....now, with that vent, back to the books! =)