Need to find out what to do for breakthrough pain, I take oxy 20 mg. every 8 hours. NO RELIEF?

I have ruptured disc's at L3 through L5 plus C4-5 and stenosis in the lumbar and the cervical spine, as well as inversion of the c-spine, scoliosis, spondlyithiasis, degenerative disc disease, fractures to T-7 through T10 which was chipped in half. I am in pain management, but hate it I am only 33 and still try to be active, but I feel like I just can't go anymore. I am afraid of addiction, but ped all the psychological test that say I won't what will help me. I CAN'T LIVE LIKE THIS!!!!!