How can i move on from specific true crime cases?

I've always liked true crime, I started watching it when I was around 8 but I've never felt like this before. I've been so stuck on Idaho 4, Columbine high school, Sandy hook elementary and Robb elementery. I've been reading and watching things about them for 2 months, maybe that doesn't sound like much but I usually forget about things like this in a day or sometimes two, not months. Its just stuck in my mind, all I'm thinking about is these, even when I put my phone down and go outside, I'm literally thinking about these cases again. I've gotten more paranoid too