dwtb is right, you need to pick a side. The real meat of this statement though, and this is crucial, is that you CAN pick a side. You can make the solemn and considered decision to make the last drink you took be the last drink you will ever take, and that decision can be YOU. The noise about self doubt, self worth, all that other crap, is nothing more than ITs whining and winging about being cut off permanently from ITs source of alcohol. Assign all that self doubt to IT, separate from IT, and stick with what YOU want and deserve. And what you want and deserve is a life without the agony and torment of addiction, a life with peace and hope and joy, and your own measure of happiness.
You can do it. Identify those negative thoughts as not YOU, but IT, separate from them by understanding the divide that you created by making that decision to never again drink, and then get busy doing stuff and reaping the reward of living well. Onward!