Do dream catchers really work?

Ever since I stopped smoking weed I have been dreaming more. I realized that my dreams are not pleasant and I wake up crying. I don’t know why my brain does this to me. My most recent dream was so graphic I could almost feel the pain. Basically it was an apocalyptic type of dream where people were in a trance and slitting people throats and the only way I could get away is if I caught them before me and I slit their throats. And what really gets me is the dreams usually start off so light and fun like I was just having a good night with my ex who I adore we were eating Waffle House then all of sudden someone came in with a knife and slit his fucking throat I was terrified I’ve literally never seen that in real life and I’m so desperate to figure out where can I get a legit dream catcher cause I’m genuinely shaken up by this. I also had another dream where I was on a cruise ship having the time of my life and a terriost attack happened and started shooting up the fuckin ship! Like what the fuck does that even mean!