I would make sure you polish your Arithmetic as much as you can (as well as word problems). Geometry advanced problems can wait.
As much as I hate to make this suggestion, I will. Since you only have 20 days and have more to cover, focus on covering everything at at least 650 level (without advanced) and then catch up on advanced if you have time at the end. That would be my suggestion....
it is good you did the Math foundations - make sure you don't skip around (e.g. if you having issues with a non-advanced section, make sure you understand all issues/solutions before moving on rather than moving and then having to go back)
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