I'm scared of asteroids and black holes?

We can die any second of any day in so many different ways...you shouldn't get paranoid because we live like this 24/7 your just not fully aware of it 24/7...so why does it help to fear random uncontrollable forces that could kill us? It's a good thing you realize it, but not a good thing that you fear it, just don't get emotional about it...logically yes we can die any second of any day...I could give you a list of things going on that could get you more a paranoid, but honestly it doesn't matter because what you don't know...won't hurt you...so if you do know something...why are you letting it hurt you?