Hello. I'm sorry to hear you're finding things really hard today. I completely understand - at first I was so, so annoyed with myself that I had got myself into the situation where I could no longer drink. But now (3 months on) I am SO pleased, in a way, that I got myself to a point where I knew it could no longer continue, because without it I wouldn't have changed, and being sober has given me a completely new life - one in which I'm happy and active and capable of so much more.
All I can say is that you should stick with it, because it's worth it in the end. It does get easier - all those tense feelings, the anger, the upset - it does get so much easier. It's not something that goes away overnight, but it does go away, and is replaced by a feeling of contentment.
I hope the day gets better for you. All the best.