I can not seem to get past my A+ practice tests.

I am a female student currrently attending MTI in Sacramento, CA.
I have taken the A+ class 2 times and both times I haven't gone in to take the final exam. Not to mention that I haven't even began to try and take the real test. I can't seem to retain the information I take notes, and I study but I freeze when it comes time to take a test. I am not stupid but I think the 6 weeks I am given to learn everything I am supposed to know is not enough time. Is anyone out there willing to help or give me some pointers as to what steps I can take to get this certification? I don't want to watse my time I've invested in the school and the money. HELP

