It is an excellent habit to possess to get up early routinely. I can understand how much you need to adjust yourself from the tenseness to the easiness now, especially with all uncertainties you think you are going to face... Dear, please be comfortable to be who you are, and be comfortable at where you are... Work hard when you start your master in the coming fall. But now, just relax and prepare yourself for coming two-year graduate study in every perspective - mentally, physically and financially... The opportunity only goes to the well-prepared. All the best. 
