AIME Prep
Hello,
Last year I took the AMC 12 as a sophomore and got a 55 (no prep). Now, I've been learning the concepts for the AMC, although I haven't taken a mock yet. I'm currently in Calc 3, and I have a strong algebra foundation and a decent geometry foundation.
The main problem I encountered last year was that I didn't know number theory or counting probability (I didn't even know how to do permutations), so I've been learning those concepts.
Is AIME qualification possible if I study about 4 hours a day until the test, or do I need to study more?
Along with that, what are some good resources to learn these concepts from start to finish?