Experiences - is cold turkey as impossible as it seems

[WickedInsect]

Hey Everyone. This is the first post that Swim has made on this forum. Swim has been a voyeur here for a couple of months but now swim would like some of swiys experiences and knowledge. Swim has had about a 3 bag a day habit (IV) for the past 5 or 6 months but now swim really needs to stop because swim knows how this movie is going to end if he keeps this up. Swim has been trying for the past couple of weekends to kick cold turkey, but always fails somewhere between 24 and 48 hours. Actually 47 was the longest that swim has made it. Swim is starting to get really discouraged and he is losing hope. He is starting to believe that he's not going to be able to do this.
Swim would really appreciate any of swiys advice and more importantly some of swiys success stories so that he knows that it can be done. Swim has access to only OTC's and maybe some T-3's to help the W/D's.
So basically, is Cold Turkey possible? how many days should swim expect the W/Ds to be unbearable?
Anys tips or tricks to make it easier. Words of encouragement would also be welcome. Thanks to all.