I think that one of my greatest difficulties recently has just been trying to visualize things from pure data. We talked earlier in the internship about learning styles and I definitely am a visual learner so it is difficult for me to get a feel for a lot of things based on speculation. However, I feel that the best way to tackle a weakness is to confront it head on and develop an understanding rather than shying away from it for the rest of your life.
Hopefully as you start getting your plots made you will start to have a better understanding of what the data can show you. I am very much a visual learner too!