Make it or Break it

Today I took the Human Geo. test and I pray to God I did good on it. I studied for 4 days to bring my grade up. I need to ace this test. Honestly I don't know how to feel about it, there were a few questions that I didn't know and it worries me because I just made my best educated guess. Right now he is about to hand them back. Oh please God let it be an A is all I'm thinking right now. My heart is feeling like its going to explode because it's beating so fast. Honestly though this feeling just makes me think on how much I hate tests, why put this worry on people just for the grade on material. I understand why and it's to make sure the kid understands it. The teacher wants to make sure that the students understand the lesson and can carry that information into their lives as an adult. Well apparently the class average was an 82.5 which is extremely worrying already. So somehow I got a 79. I just don't get it the more I try the worse it gets. Like my grade is actually going to be worse now despite the fact of me studying for this one harder then any other tests. Now I actually can't pass anymore and my dad is just going to be so angry with me because I didn't get an A. He's been on me about this because the thing is I have never gotten more then a 2 B's on a report card but that's out the window because I am having an insanely hard time getting an A in Math and for some God forsaken reason I can't get an A on a test in this class despite preparation. Now I'm honestly wondering how this midterm is going to go because even if I study for it I don't even know if I can get an A on it. Like I just doubt my academic abilities now in this class because I just can't seem to do anything right.