Change your thinking.... It doesn't suck it gives you an opportunity to really come off all substances with the safety of modern medicine. It's 3-5 days you're guaranteed to not drink. It's 3-5 days that could give you decades more of living. It's 3-5 days you'd likely be drunk or hungover! Give yourself those 3-5 days it might mean a new lifetime!
Good luck, God speed!