Well done Signal30 - you grasped it quickly, but don't beat yourself up about getting mad. I recently did that, I let a lot of pressure build up, but mine was work related and I let it build for a couple of weeks. Eventually, I broke down and cried in a meeting - only the 2nd time I've cried since I stopped drinking 5 years ago. My sponsors reaction - you know what did it, you know what the tools are, BUT everyone is allowed a bad day - and if you don't pick up a drink - you're doing ok.
IMO God has a wicked sense of humour as my reading the next day was based on "don't be destroyed by fear and guilt -hand it over and get over it".
Can't say fairer than that.
God Bless