I just thinking about your door. Is there something heavy that you can place against it? Perhaps a cabinet, or a cupboard. It might give you a little bit of mental relief to know that the door is sufficiently barred if not locked. Sometimes, when I'm alone, I put a cup on the handle of the door. That way, if it rattles and falls, it will alert me that someon might have tried to open the door. That might help alert you, too. Is there someone that you can trust that can come stay with you?

Take care of yourself , JG.