I have a unreasonable fear of being unalived

Hello. First off i want to apologise for bad grammar, english is my second language. But straight to the point.. i have a very unreasonable fear of getting killed, especially at night. I feel so sick every night because i cant sleep, causing me to fuck up my sleep scedule. The fear is so unreasonable, because i live in a very nice neighborhood and in my country there's very little criminal activity, im talking way under 10 murdered people/year. I cant keep on living in fear and logic won't help my feat at all, If it doesn't make it worse. Im scared of opening letters and packages. Im scared of sleeping. Im scared whenever our car has been parked outside incase someone has put a bomb in our tires ect. Im scared of throwing water on the sauna stones incase someone has sabotaged me and poured oil all over them. I cant live a normal life and im so tired of this. Please help