I've cold turkey quit benzos before, however, everyone's experience with benzo withdrawal is completely unique. For some it is quite dangerous and should be done under medical supervision.
My experience with benzo withdrawal was three weeks of absolute hell. I couldn't eat, I was shaking, felt pretty ill, and in constant pain. The mental torture, it also took me to very dark places into a depression so deep it was sort of terrifying. I just laid in bed for three weeks sleeping basically. At one point I was losing my mind and just screaming, I don't really know why, it's hard to remember. But I was sort of just, out of my mind. To say the least. Each day, it gets worse than the last. Just when you think it couldn't possibly get any worse, it does. And it continues like that until you're beyond done, and genuinely feel like you are going to die, and *want* to die.
I had no idea how long it would last or when it would end, and whenever I had thoughts of quitting the detox, I would sort of have to shake my head and argue with myself to keep my head in the game and stick this through. I was in so much pain, I couldn't even type like I am right now on a keyboard because it hurt to move my fingers even slightly putting pressure on them.
I think in the 3 week mark my head started feeling a little clearer enough to sit up and eat a tiny bit for the first time. Just a bit of saltines, a bit of jello. And then when I finally started turning the corner I did manage to get down a smoothie. And after that I think I was living off of smoothies for a few days until I finally finished the withdrawal.
Three weeks of hell. It's different for everyone, the length it could be or how terrible or how easy the experience is. But I have to say, benzo withdrawal for me personally was the worst thing I have ever been through, purely because it does not let up. It has constant endurance so, you never get a break from the pain, it just worsens. It's very much so the worst kind of torture I've ever seen or experienced.
But if *I* can do it, you can. Yes, it was three weeks losing my mind writhing in pain in a bed. But once those three weeks are over, you are free from it, and it's totally worth just getting over the hump and doing it. Yes, it sucks majorly, it's the worst time ever, but then it's over, and you did it.
Also by the way, I tried just about every over the counter drug, supplement, whatever to help with the effects of the detox, I tried reading things that would help, etc. Nothing does, I can promise you that. They say like, "oh take this, take that." but, in my experience it did absolutely nothing. Not even over the counter pain relievers have any sort of effect. None. So yeah, unfortunately everything you put in that list there, isn't really going to lessen it.
There are prescribed medication assisted recovery options, but, obviously you'd have to consult a physician which it appears you have, and I think going to a detox would be smart as well if they will provide you with medical care you are looking for.
I honestly can't recommend someone does this alone without constant supervision. Not only for the medical necessity but, also mentally I could see someone not handling it well, the deep depressive element could be an SUI risk I won't lie.
Not to sound scary, but, I don't want to tell someone not to take it seriously and just cold turkey it like I did. Always get medical advice. But I'm just here for morale, and to tell you the honest truth, it's going to suck, but then it will be over.
I wish you well, be safe.