Do you have any supplemental material available to you? When I have trouble grasping a concept, I use ATI to add to what is in lecture or the textbook. It helps me to read information from a variety of sources, maybe the same will work for you. I had trouble in Peds as well, the support of my classmates and their encouragement to join in on study groups really improved my understanding (and my test grades!). Hope this helps!
Katie Reutter, SN