Hi Pmackey, welcome to the thread. A couple of people on here have had liver tests come back raised but it has corrected itself once the tablets are stopped, so try not to worry too much. The liver can handle quite a lot!.
Cold turkey doesn’t seem an option for you so tapering really slowly would be the best way I think. It can be done, I think Marky tapered so hopefully he can give you some advice.
Could you tell your doctor as they can give you some diazepam to help you through the worst.
I wish you luck with your journey ????