I can relate to a lot of what's been said as i have heavily abused the full variety of Benzos since September 2009, and having withrawn several times only to go back to using as life without Benzos didn't feel a great deal better than life with them.
I'm struggling through another withdrawal as we speak (5 weeks clean) yet i'm still suffering lingering Physical symptoms - headaches, sleeplessness, GI problems, sever sweats etc Along with intense Psychological craving to the point where ALL my thoughts are consumed with using again.
Many people mention using sleep aids like 1st generation Antihistamines, yet i found them all useless. You say you get 5 hours of sleep, well that's about what i've been managing (albeit broken sleep) I pray that this will return to normal as it's the one thing that could tip me back over to using. I also see many many people mention exercise, yet i cycle around 10 Miles everyday, 5 days a week (roughly 50 Miles) and this does not help, I also see somebody's post mentioning not to sit in and hide away, yet this is the only way i find controls the Anxiety, any Social situations send my Anxiety through the roof. (Including work, but I have to go!)
I hope (you) & i can stick with the straight path however difficult it is and hopefully come out the other side.