Nerves or Too Much Caffeine

So I have not been sleeping well the past few nights. I have to wonder if it is all the caffeine I have been drinking to have energy at work, or if it is nerves. I feel like I have so much left to do for the wedding. I am not sure I am going to finish everything, but then again I wonder if it even matters. The point of the day is my marriage to John not the day being perfect.