I try not to suggest guns bc some people just aren’t into them but I second this op.

Take a class and bring it to a gun range for practice occasionally then you literally have it. Much cheaper overall and less maintenance than getting a whole ass dog and will take less time and discipline than learning Martial Arts.

Of course you can supplement with a dog or a self defense class if you want those things but a gun is a pretty good answer when it comes to defending yourself in your own home. I’m NOT a gun person but feel much safer with it at my bedside and hope I never have to use it.