At least you know you can make it a few weeks. That a darn good start. You need to identify your triggers that make you drink after those few weeks of being sober, and help eliminate them. I think is where talking to someone really helps... I talked to someone during my last sober time period, and then I decided I didnt need to talk anymore and then I started to drink... Bah. So I know this time I need to keep talking to someone... keep up that conversation and self examination and have someone else help me through this instead of drifting through the night going wherever the wind took me. It is time for me to decide where to go, and not at night but deciding where to go with the brightness of day to help me through it. I hope some of that made sense, or helps you get on with your journey.