Remember to not get down on yourself...something very important and very valuable happened yesterday. Of course it would have been better not to drink. But since you did it obviously reveals a problem or an issue in your sobriety plan. So please spend some time today and go over hour by hour what happened that lead you to the point that you raised glass to lips. Once you identify that flaw...start fixing it. Make a plan for the next time you get to "that place" whatever that is. So if you capitalize on this slip up you can make HUGE gains off of it! : )
I told this to someone else. In the US Army Special Forces they have a saying...don't train until you get something right (which most of us do)...instead train until you get it WRONG. Because for a true professional that will highlight the flaw in your training and the error in your plan. So now you can fix it.