Never Ending Sleep

My energy lever has been severely lacking lately. I've tryed every vitamin that contributes to fatigue, regular exercise, I get 8 hours of sleep. All I can think of is my anxiety. I was born with severe generalized anxiety disorder, its a battle and interferes with my day to day life. Medications don't work, or at least none that I have tryed. I'm tired of feeling tired, I'm tired of sleeping 8-9 hours and walking up feeling like I need another 12. I have never in my life woken up from sleep feeling refreshed and full of energy.. ever. I'm also started to wake up with a lot of upper back and neck pain. I have no idea how to fix this.. I can't afford a new mattress. So I live with it, dealing with the chronically heavy eye lids and the feeling of sleep deprivation coming in and out. I hope that one day I can figure this out and one day I'll know what its like to wake up feeling refreshed...