Stacy,
Have you thought about doing a yield to see what your supply is like?
If your lo is wanting to feed every 2 hours, then try and do a 2 hour EASY, this way she may be getting the calories she is looking for, and still sleeping so she is not getting over stimulated.
I do agree, that the fact that you are battling to get her to sleep at night is because of her being overtired.
I would not wake her in the morning just yet, not until you are settled into a good routine.
HTH
Paula x