So Frustrated!!

I am so frustrated and stressed! I am currently taking my prereqs and hoping to get into the ADN program in the spring of 2011. I am not very good in math, so I am trying to get "A's" & "B's" in all my other courses that way a "C" will not kill me when it comes to Algebra or even Chemisty. Our math courses are broken down into 5 classes and for nursing, we only need three out of the five classes. In the first algebra class I received a "B" and the second class I received a "C". My third albegra class starts next month, but I have had a tutor for the last month or so helping me and he will contine to help, so hopefully I will get higher than a "C". Anyway, I am currently taking Sociology and it's the only class I am taking, so I figured it would be an easy "A" as long as I study of course....WRONG!! So far I have had two exams and I only have two left. The first exam I got a 77 and the second one I got (i want to add that I felt MUCH better prepared for) a 73. This is not looking good! I really thought this class would be an easy A or B since it's the only class that I am taking. I don't think I have any hope left for me especially when the instuctor has told us that the average class got a 78 and a 77 on these two test. If the class is averaging "C's" he must be OK with that, but I am not!!