CLEP CHEMISTRY EXAM, Help! Whats the best way to study for someone who isn't very good at chemistry?

I am taking the CLEP chemistry exam on Jan 14th and I have been studying by taking notes/ watching videos/ reading transcripts for the last 2 days or so using Modern States and Khan Academy. Im not sure what I should focus on since there is so much information coming from both and what is more on the test vs not. I have to pass this exam on that given date or I will be dropped in my second semester of the nursing program, which is everything to me.

I'm really worried considering I already took 2 days on the atomic theory and atomic structure portion of the Structure of Matter topic and i still have so much to go :(

Any advice on how to effectively study to pass this exam considering the amount of time I have and the topics I need to know? What should I do?