(Please make corrections)
This semester was particularly hard at college, since the beginning things seemed to be that way.
When I first entered my math class and saw the teacher I knew I was fucked, there he was, Campo Elias Martinez. I had heard about him, one of the worst teachers at this college. However, the only thing I could do was try hard on my own. He’s the kind of teacher you don't learn anything with, he's lazy, messy, and speaks so loud. He is always is trying to punish (reprimand) you.
This semester is about to be finished and until yesterday I wasn't sure if I'd pass math. However, I can say that I gave it all I had and did all I could.
Now I don't care about Campo Elias because the Mathematics department of my college allowed me to do an adequacy test, and I know I'll pass math class, I'm so happy because of this! B)

Re-written to fix mistakes.

This was a great notebook entry! I completely understood you. I only fixed some grammar and spelling/punctuation. 

math class.

(Please make corrections)
This semester was particulary hard at college, since from the very beginning things seemed to be headed that way.
When I first entered my math class and saw the teacher I knew I was "fucked", There he was.." Campo Elias Martinez", I had heard about him - one of the worst teacher at college. But only thing I could do was try hard on my own, because he's the kind of teacher you don't learn anything with. He's lazy, messy, and speaks so loud, and <em>(overusing the conjunction to start a sentence)</em> he always is trying to reprove/abuse you. (<a href="http://www.thesaurus.com/browse/reprove">http://www.thesaurus.com/browse/reprove</a>;)
The semester is about to get finish/come to an end and right up until yesterday I wasn't sure if I'd aprove pass maths. However I can say so for sure I gave all I had and do did all I could.
But Anyway, now I don't care about Campo Elias because the Mathematics department of my college allowed me to do a "prueba de suficiencia" and I know I'll aprove pass/qualify for(?) maths, and because of this I'm so happy because oh this. B)

mMath Cclass.

(Please make corrections)
This semester was particulary hard at college, since the beggining things seemed to be that way.
When I first entered have joined to math class the first time and I saw the teacher I knew know I was  in "fucked", I heard that he looks like There he was.." Campo Elias Martinez", I had heard about him.  One of the worst teacher is at college. But only thing I could do was (I don't understand what you want to say) try hard on my own, because he's the kind of teacher you don't learn anything with. He's lazy, messy, and speaks so loud. And he always is trying to reprove you.
Semester is about to get finished and till yesterday I wasn't sure if I'd aprove maths, however I can say so sure I gave all I had and do all I could.
But now I don't care about Campo Elias because the Mathematics departmen of muy college allowed me to do a "prueba de suficiencia" and I know I'll aprove math, I'm so happy because oh this. B)