We know we are going to die, eventually, and from this somewhat questionable gift of sentiency, we search for Big Picture answers. We are all spiritual beings, and whether through organized religion, any other frameworked belief system or through individual puzzling, humans fundamentally seek answers to life's more elusive mysteries.
Your mind is racing, stuck on thoughts and cravings of another drink, or another hit, and relapse at this rate is just around the corner.
You need to put the brakes on that runaway-train mind of yours, and get yourself back into a place of peace, and maybe even happiness. Forget About One Day at a Time – Think One Second at a Time!
Now, I am not a Buddhist, but I have found certain easy to learn meditation techniques to be extremely helpful, and I have learned to respect the wisdom embodied in many of their practices.
Maybe meditation will do as much for you as it does for me. It's free, you can do it right now, and it might bring you some peace. Why not try it?