Hello and I can see where you would be addicted to something that takes your mind off your real problems.
Karen is wise, is there a physician you can see about restartig your meds?
As far as your studies, make a list of what your going to study, time, length of time, schedule in a couple of stretch breaks and then sit down and do not get up until your mission is accomplished.
Keep on talking to us and take care.
Kitt