What could you have done differently?
This is where you can have an opportunity to learn from it and that why having a plan and being prepared can be so important.
I get it-- that wish to be "normal" and drink like everyone else, but I've accepted that I'm just not and I've accepted that for me to drink will sooner or later not end well.
Just "not drinking" through willpower or being strong never lasted long for me; I needed help and support to change my lifestyle and mindset so that I could stay stopped. I also avoided drinking situations for a long time until I felt much more stable in my sobriety.