Exhaustion and Anticipation

Tired, went to bed late and woke up early, spent the first full day out of the apartment in a LONG time. I'm doubting my abilities as a student as the second semester rapidly approaches. I wonder if I can successfully memorize all that I will need to for good grades in 3 Art History classes. I want to really up my GPA this semester and get all A's rather than A's and B+'s like last time. I'm sure that to some I sound ridiculous complaining about B+'s but for some reason, to me they feel more like C's and D's. I know that I am going to have to work really hard this semester and the daunting task at hand is taking its toll emotionally. I need to figure out how to find the correct balance between hard work and confidence without being cocky.