I know how you feel buddy. I have really strict rules for myself around drug and alcohol consumption. For example, if a bottle of Scotch lasts less than 1 week, I am drinking too much and need to cut back etc. I've not broken that rule since I made it, except for this winter and last winter.
I was always not a fan of gloomy winters, but this on top of it has made it terrible. I am so over all of the panic and fear.
Hang in there!