Chemistry after AP

(I know that this may not exactly match the category but this category did seem like the best to post this in)

I am a junior in high school, currently in AP chemistry, looking to participate in the 2017 Chemistry Olympiad. The exam content can be more advanced than what is being taught in AP, so I would like to acquire a textbook for the next level of chemistry above the AP curriculum.

If you passed the AP chem exam and are now taking the next level of chemistry in college, please tell me which textbook you use! If you also have any recommendations for helpful youtube channels or any other tips to supplement my learning, those are also welcome.

Of course, if you have done well in the Chemistry Olympiad and have any suggestions or study methods, please tell me about how you achieved your success!

thanks.

There should be an official list floating around of the USNCO textbooks.

And there are a lot. I think it’s in the neighborhood of 11(?)