ALEKS ELM CSU Test Prep -- Fail?

I’m really anxious at the moment because I will be taking the ELM test this Saturday at San Diego State. Why am I anxious? Well, I’ve been using ALEKS’ ELM CSU Test Prep as a study program for two months. I’ve done excellent on there and remembered most of the material. When I decided to take a practice test online, I was astounded due to not knowing how to solve the material presented to me. It has now filled my head with doubts regarding the program I paid for. Is the ELM test similar at all to the problems on the ALEKS program? Seems as if it isn’t.