<p>If at all possible (read, if you can get by without your mom's financial help) don't obsess about grades. Collge is about learning, and grades are an imperfect way of measuring learning. </p>
<p>Go to class. Complete assignments. Ask questions when you're confused. Go to office hours. Read the book. Read and consider every comment you get back on every paper and test. If such comments aren't offered, ask for them. Become passionate about learning, rather than passionate about grades.</p>
<p>It really is better that way.</p>