a "B" ? wtf

I got my essay back today from my English teacher. The topic was basically about someone we admired and/or identified with. I chose Bill Clinton. I wrote 1 1/2 more pages than required. My teacher thought it was really good, but she didn't give me an "A" because I didn't have proper MLA format. This is a prime example of my laziness. I did the MLA citations thing, 1/2 hour before class on noodlebib. I know deep down that I'm an "A" student. But sometimes I get to cocky and confident before a test or final, thinking I know what's up. This got me in trouble on my anthro mid-term. I didn;t feel the need to study. I felt to confident. And a similar thing on my Gender studies mid-term i had today. I didn't study the simple material. Just the hard shit. I probably ended up missing a few questions as a result. This happened last semester in Anthro and Astronomy. The two classes that were easiest for me, that I was such a wizz in, ended up stumping me on the finals, and I got B's in both classes, when I know an "A" was so easily within my grasp. silly me