That's all part of making the decision to stop drinking. When we stop drinking it's like a death/loss of someone very dear to us and there is sadness, anger, self-pity, all of that that goes with it. I didn't realize how much of a fog I had lived in while drinking until that fog began to clear within a month or 2 of sobriety; even though I mostly did my drinking on weekends I was in that fog all the time. I think getting your thoughts out online is a great way to deal with what you are feeling.
J