I'm four months and some days sober and the further I get from my last drunk the less shame I feel. That was how I used to be and now I'm different. I cringed for about the first month or so from regret, shame, guilt, etc and that's where I found AA to be helpful. Whether anyone is into AA or not, there's something to be said about being in the presence of people who have been in that lonely, shameful place before. They give hope!
Hang in there and don't drink. As long as your last drunk was "last week" that gut wrenching feeling will remain. One day your last drunk will be "last year" and you'll feel accomplished.