I know everyone talks about exercise and it's amazing benefits (I used to run so I get it). How do you deal with the endless cycle of fatigue getting in the way of exercising. 

I get in a bad habit of taking something every night to help me sleep, mostly things like tylenol pm but sometimes things like ambien and xanax. I am trying to stop that and instead take things occasionally when needed and also start an exercise routine. This is where the problem starts, I prefer to work out in the morning (get it out of the way) so I set my alarm for 5 am, can't fall asleep until about 10 even though I go to bed at 8.. 1 am rolls around and I'm awake, toss and turn for about an hour, stressed because my alarm is going to go off soon and then what will I do if I haven't slept? Take half a Xanax and go back to sleep.. alarm goes off and now I'm too tired and demoralized to get out of bed and work out, go back to sleep for an hour and spend the day exhausted. 

Does anyone deal with this? How do you break this cycle?