Hello,
In my personal fight with alcohol all you have mentioned is very true. The best thing that i have learned to do is pick up the phone and call someone close to you and explain your thoughts and feeling. Also another great thing to do is find something you enjoy to do, thats simple, and do it. Takes your mind off things and also helps you gain some confidance at that time.. You are doing great, just remember you are not alone and these thoughts and feelings are very common.