Problems in another class

When I first started college I didn't really know what to expect, with homework and my classes. The first week I didn't get very much homework, but as week's went on the pile got bigger and bigger. I am not really worried about any of my English, history, or sociology classes, but I am worried about math. It has always been my worst class...... Surprisingly I got a B on my last test. I just started my Geography lab today and I feel this will the next major problem I will have in a class.