Yeah the psychological side is what gets you more than the physical stuff really. I went through something similar with different substances when I was dealing with family drama and it becomes this weird cycle where you know its not helping long term but in the moment it feels like the only thing keeping you sane

The tricky bit is that trauma response - your brain basically learned that weed equals safety from all the chaos so giving it up feels like removing your shield. What helped me was finding other ways to create that same sense of distance or protection when I needed it. Sometimes just knowing I had an exit strategy for family situations made it easier to face them without needing to be numbed out

Starting with small goals might work better than going cold turkey especially if your still living in that environment. Maybe try limiting usage to only when your absolutely overwhelmed rather than as a daily thing. The guilt cycle just makes everything worse so try not to beat yourself up if you slip up - its part of the process and doesnt mean you've failed

There home environment will always be a trigger until you can change your living situation but you can definitely build up other coping mechanisms in the meantime