About sleep... I don't know what your habits before sleeping are, but if in the last 2 hours before going to bed it involves any watching/reading on screens, it could influence your sleep negatively. For that I reccomend f.lux, try it out, it seems weird at first but could help. Next, how many hours do you sleep ? A normal sleep cycle is around 1.5 hours long. If this is interrupted, you will feel tired even though you have slept enough. The trick is to use that knowledge when setting up alarms/deciding when to go to sleep. Assuming it takes you half an hour to fall asleep, from what you mentioned above you sleep 8 hours. Try heading to sleep half an hour later and wake up at 6, getting 5 sleep cycles in, and see if that works better. Keep in mind, more is not always better. 9 hours of sleep seem to be unnecessary, 6/7.5 are ideal. I hope this helps, sleep well :)