I used to use cocaine too...never was a fan of hard booze though! I'd only drink it when I'm out in a club or at some social event... when I was drinking alone, I'd always indulge in beer and/or Martini (bit of a contradiction lol)
just try to last a day without drinking and see what happens. if you feel too bad and have major DTs, you can easily call an ambulance....that's what I did last time it happened to me, which was exactly a week ago. and now I'm terrified of ever having to go through such distress and embarrassment again (the paramedics that came to my flat were more or less my age and quite handsome lol) hence I'm staying sober! one-day-at-a-time
just do it, mate! it's always worth it. or you can look at the threads about safe detox if that would be easier than going into complete abstinence.