Linguistics is hard

I am at the library again. I was trying to do my linguistics but I couldn't figure it out...these are supposed to be really easy assignments as the teacher stated yesterday, but I don't have the faintest idea how to do them, at all. I worked on it for about an hour and realized that my answers were wrong, so I erased them all and put it away. How am I going to make it through this class? Should I drop it? What would I take instead? I am very worried about it. Heather came and visited me at the library...it was very nice...and Mary dropped in for a minute also!