Vent away. That's what we're here for. We all need an outlet.
A very long time ago, I was married to a man who drank too much and smoked too much pot. I was the mother of a small child and a husband who acted like one. I had a job. He didn't. I mowed the lawn with my son strapped to my back because my lazy, drunk/high husband wouldn't mow the lawn and didn't want to "babysit" (as he called it).
I got out of that marriage....thank goodness. But it took time for me to get there. It was a decision I came to alone....without support of my family (they were 3,000 miles away).
You will come to your own decision in your own time. Stay or go......it's always a choice.........but never an easy one.
There are so many people dealing (or have dealt) with what you are dealing with. Stick around SR. There is great comfort knowing that others are dealing with this issue in their lives. Getting support from a local Alanon group or reading or hanging out here....it's all good.
gentle hugs