hi Primativo & welcome to SR
sorry to hear you're having a rough time of it, but you've come to a good place.
it sounds like you're in the UK? if so, I've had a similar experience at A&E - IV fluids, a talking to, a tablet or two of Librium or Valium & then kicked back out of the door
I don't know whether you've talked to your local alcohol team yet, but they may be able to arrange an outpatient (ie at home) detox for you which is safer & a lot more comfortable than trying to taper on alcohol.
I know it's probably pretty scary for you at the moment, but you're doing the right thing & you're not alone.