I dont live alone BUT whne i have the house to myself, i feel safe because i have cameras in the front, a ring doorbell and i have an alarm. In my car i have self defense keychain that incluse a peperspray, tazer, a window opener, a monkey ball defend (i dont know what its called but its something with monkey).
Is your neighborhood safe ?
I suggest to make it seem like you DONT live alone if that makes sense. Cameras and alarms would probably make you feel better 🙂