It truly does get better day to day. That pointless place you mention is those feelings you suppressed with drink coming up, and that addict part of you saying "see, it's pointless--let's drink" but if you keep going, and feel some of those feelings, they will be released and you'll feel more peaceful and grounded. At least that was what it was for me and many others. We numb ourselves with alcohol, so naturally we are a little "raw" when we stop. This improves quickly so hang in there and keep hydrated, sleep when you feel like it, and eat some good food.
I also found lots of showers, ice cream, and clean bed sheets (I sweated a lot at first) really helpful in the first week.
You can do it!