I can't sleep

Help how do you sleep when paranoia flairs up? I have somehow convinced myself that my neighbours in our small country town are conspiring against my family and will attack us while we sleep. I know in reality it's unlikely but there's a part of me that says we'll what if and now I'm exhausted because I'm not sleeping over this. We don't entirely get a long but we haven't had any major disagreements. One neighbour walks by my fence twice a day to walk his dog and he stands there and just looks into my yard, when we first moved here he told me not to talk to 2 of my other neighbours and that one of them falsely accused him of masturbating under their window but once I did start talking to them they knew nothing about it. He also told my hubby about a lane way down the road couple's go to have sex which was creepy. Then we got a cattle dog that has never liked him and when his dog stuck his head through our fence our cattle dog bit it. Now several of my neighbours he is close with don't like us for some reason and the ones he doesn't like have moved away so I feel lonely in this with creepy neighbour walking my fence line daily and calling council on my dog all the time. And I'm loosing sleep over this pathetic situation. How do I manage to put it out of my head so I can sleep 😭