That really sucks man. I'm surprised that you're not being shown a little more compassion, considering you were on the Benzodiazepines legitimately, for years. Oh wait, I'm not surprised. This is exactly how things I work. Doctors swoop in, write the scripts, ruin lives and by the time people realize what's been done to them, the Doctor is already calling them an addict and accusing them of shit, preparing for a violent and painfully abrupt taper of the medication.
The truth is that it will probably last for a few more weeks at a similar intensity to what you are experiencing now. It's very hard to estimate these things and as you know, the withdrawal from Benzodiazepines and sedative/hypnotic medications in general tends to wax and wane in severity, as opposed to Opioid withdrawal, which is more predictable and linear. If you are going completely insane, I don't really see a problem with having a couple of drinks here and there. Alcohol and Benzo's are highly cross-tolerant so in really tough situations, it's not totally insane to take a shot or two to even you out.
The key is that you don't want to be introducing new sedative/hypnotic substances into your body. A little Alcohol isn't going to ruin everything and in fact, the relaxation it might provide could help keep you sane throughout the process. Say, in the evening, after work, that can be your time to relax and have, again, a couple of drinks. If you begin consuming sedative/hypnotics excessively, it's going to impact the length and severity of your withdrawal.
Do you have access to a prescriber currently? There are medications that I might recommend that are basically non-cross-tolerant with sedative/hypnotics. I'm with FemaleTrouble on this one.
Gabapentin (Neurontin)/Pregabalin (Lyrica) - Amazing for all withdrawal in my experience. Alcohol, Opioids, whatever. Can provide energy, tends to "quiet" the nervous system (helps with the feelings of inner restlessness) and can even provide some ambition for you. My top withdrawal med, hands down. If you need advice on its use, we're here.
Clonidine (Catapres) - Kind of a panacea. It lowers bood pressure, alleviating some of those tense feelings and can help with sleep and overall relaxation. I take as much as .3mg in a sitting if I don't have tolerance already.
I would advise against the sedating antihistamines though and go for something like Melatonin. The sedating antihistamines are frequently prescribed for withdrawal, but I really don't know why, as for practically everybody I talk to, they greatly exacerbate symptoms of RSL/Akathisia. 100mg Diphenhydramine (Benadryl) has taken me from minor RLS/Akathisia to "holy shit I want to cut my legs off" in under an hour.