Sure, they can hurt us - and will, and do! But the part of us which is eternal, the spiritual side of us is untouchable!
It's good to have that perspective, to practice thinking of your life as safe from harm. My teacher at Bible college used to say, "The only person who can hurt us -- TRULY hurt us, is God- and he won't!"
I encourage you to focus on the safe place that your God is. Put your trust in him, don't be afraid!