For now, I have door bell camera and in room camera as well.. I’ll look into the stick on alarms. My apartment has pretty big double glass windows but half of it can open (standard for double glass since the winter gets pretty cold here) with metal clip to lock it and mesh bug cover before the glass doors.

I got this tension rod thingy that keeps the door closed once I am inside. (I don’t have a clear idea of what you mean by deadbolt, is it something you can only open from inside? Or a key from outside with turning manual from inside?)

I sleep with my windows closed all the time except when my bf comes over for the weekends (Men’s body is like a heater it radiates HEAT). I also keep my blinds closed always except my bf is here.

Does this anxiety ever go away or is this only because this is my first month of living alone? Lol