In all seriousness, you should understand what your defense needs are. That is what is the furthest distance you have to defend? What are the points of entry., etc. If youre in an apartment a simple handgun maybe all you need. If you have a large backyard you may need a rifle. But it doesnt make sense to to have a tool that you dont know how to use. You may use it improperly under stress of the moment. It’s not as simple as having a gun, you still have to get to it and be accurate. If you are not familiar with guns, pepper spray or a knife; My best advice is to focus on preventing the opportunity to enter than what you would do once they come in. Put effort into delaying them entering because you cant prevent a determined intruder. Time is not on the intruders time.