Advice! Ahh

<p>So, I have horrible backgrounds in physics and chemistry, even though I got ok grades. Biology is another story; I feel I could do really well if I studied. Yet, the Carnegie Mellon Institute of Technology requires and SAT II in physics or chem.</p>

<p>Which would be easier to self-study? Is this even an answerable question? Gah. This has me so frustrated, because I went to a horrible public school sophomore and freshman year (when I took chem and physics.)</p>