If you are having random people try to attack you while you are at your home, you need to be prepared. Strengthen your door jambs with nine inch screws to replace the screws your door is mounted to and use metal plates to strengthen the locks (there are kits available at home improvement stores), install adherent plastic frosting on your windows that will slow down break ins by making the window much more annoying to break through, and install surveillence cameras outdoors. On the offensive front, you can consider OC/CS grenades you can throw down the hallway to avoid exposing yourself and handheld pepper spray for non-lethal deterrence at moderate range. Finally, if all else fails, keep a loaded handgun in a easy to use but hard for kids to unlock gun box under your drawer next to your bed. An under barrel flash light severely blinds invaders and makes them think twice about charging you, maximizing the chances that you nobody will get hurt. The door jamb upgrade is the most important one. I have returned home to a severely beaten door with my shattered iron door knocker on the ground laying in front of the door in pieces but the house was impenetrable to the burglar(s) who weren't willing to break through the glass. It also doesn't hurt to install fake $5 security dome cameras around the property.