hi moontoon what i do is study in my bedroom. no tv and the computer is put away. Then i plan my day. i go to the gymn three times a week and take walks up to half an hour to keep my mind active. I then study up to three hours straight then take a break by going for a walk then work straight away again. If any problems where to occur when studying i would address those problems but understanding in detail. Prioritising studying first is important to reduce the number of excuses for not doing well. Try fit other activities around studing. although it can be hard it will help you to acheive your goal in education.