Nervous, Sore, and Frustrated

Well, I made it to the gym 5 days this week.  I am being extremely good with what I eat and the scale only budged another .2 pounds (yes, less than a quarter of a pound) to 10.8.  I am so sore that it is affecting my sleep.  I have started icing my ankle and I am using the foam roller daily at the gym on my gluts and IT bands. My shoulder hurts as well.   HOW in the world am I going to make it through 7 hours a day if I am having trouble making through ONE!