Undue haste makes waste
Don’t rush to failure! You also should not have paralysis by analysis where you do nothing, because, you feel the need to continuously analyze a situation before you act. This simply means that you should be deliberate in your actions and not hasty. For example, you hear bump in the night, you do a quick sizing up of the situation as you shake off the cobwebs and prepare, then take action.
One scenario is you hear the noise, awaken, listen (to assess where the sound is coming from), secure your weapon and prepare to defend. In your home, You have the advantage, you know where everything is, you know the layout and you know the best place to defend from closest you.
You should not necessarily rush out to investigate the noise, presenting yourself as a target for the intruder/s, but, move cautiously to identify what is happening. If you live alone or sleep with your partner in the same bed, you may be better off staying right in your bedroom, closing the door, locking it possible and prepare to defend from a concealed/covered position out of direct sight where you can observe the entry to the room and gain advantage over possible intruder/s.