Tizzkins, I had my share of false starts, too. The important thing is to pick yourself up, dust yourself off, and keep going. Sobriety isn't easy, especially at first, but it is so rewarding once the chaos stops and things start looking up.
I know it seems hard now, but try to use this experience as an opportunity to learn more about yourself and your triggers. Are there people, places or things you need to avoid for a little while? Is there a healthier way to blow off stress on a hectic day? Believe it or not, you can become even stronger in your journey toward sobriety because of today. It's how you handle it going forward that matters.