You guys get ridiculously smart for no reason. Calm down and answer respectfully.
Train your dog.
I can take my husband's brand new 308 out of the box, will I get the first shot in the kill zone - sure, on sheer dumb luck. Chances are, I'll put the scope on backwards.
If the dog isn't what you are looking for at 2, re-home it, do it a favor.
A protection dog takes work, there is natural instinct, but there is work. Furthermore if the person holding the lead is a "wittle girl", that will transfer down the lead and the dog will react, significantly differently than someone with confidence holding the lead.
You want a protection dog, start training it now. Our crystal balls are all rusty, will it protect you? Sure. Go for it!
You be respectful, get a trainer to evaluate your dog, that is not disrespectful, get someone to help you train it. Working dogs are placed in working homes far younger than your dog, some wash out, some excel, but it goes beyond instinct alone. Instinct is only so much and may result in a favorable outcome, better idea, get your dog trained, get it evaluated, train yourself. Stack the odds in your favor.