Damn You Mr. Douglas

So I'm getting ready to take the GMAT and I'm taking a prep class because its been a long time since I've done alot of the math. So algebra made sense in 7th grade when I took pre-algebra but in 8th grade I made a fateful change in schools. At Albion I had Algebra with Mr. Douglas. I blame him for every difficulty in math I've ever had. Mr. Douglas was eccentric to say the least. He was a skinny man, about 60 years old, bald with a mustache. He kind of reminded me of Rizzo the Rat on the Muppets. He was just as twitchy too because he would drink an entire thermos of coffee every morning. Instead of using chalkboard or whiteboard he would use the overhead projector and just write on the screen. The gross thing about this was that whenever he wrote something wrong he would lick his finger and wipe it off. Naturally his hands were black by the end of the day. The guy was so jittery and went so fast I had trouble following him, and it didn't help that I already had trouble with it. Well, I didn't understand algebra for the life of me no matter how hard I tried, and I tried really, really hard. Well, Mr. Douglas has come back to haunt me know because algebra is a large part of the GMAT. I thought I was better at it now but nope, I'm not. I "solve" the problem that makes sense to me and I find the answer I get in the answer bank and I think I'm so smart. Then I check the answers in the back of the book and I'm way off. Hopefully it will all click before the test or else I'm screeeeewed!!