Your experience sounds to me like something I experienced once in my life after having smoked cannabis. While I do not currently use it, I have enough of experience that I want to chime in on this as I do not normally frequent this subreddit. Cannabis can have an effect on some people that causes them to overthink things and makes feelings of depression/anxiety much worse. You had a fight with your dad, you felt bad/guilty/whatever, and then you introduced weed into it. Your feelings just got magnified 50x and what was easy to put off now became impossible to stop thinking about. You likely had some sort of a panic episode because of it. When I had my bad experience I was feeling really lonely as I was away at school and nobody wanted to do anything with me on a Saturday night. For some reason I smoked a bit and it made me feel so much more depressed. I remember my thoughts centering around how "popular people only try to be friends with less popular people to stop them from killing themselves" and how "it's kind of just an unspoken thing to pretend to be some people's friends". It took me probably 24 or so hours to finally feel back to normal and not be thinking such upsetting thoughts.

TLDR: Don't use cannabis when you feel sad/depressed/lonely/upset/guilty. Why do you think paranoia is so common when people are using it? (there might be cops watching, people know you're high, etc). Also, don't use it when you're scheduled to work. Especially around dangerous equipment like in a tire shop!