Hi Mandy97 and Welcome!!
I feel your concern about being lost!! It's a helpless feeling I admit that. But there has always been war, terrorism right on through the past centuries, or even millennia. There is solace in the fact that there are a lot my meek, good people on this planet, than evil, I think or hope so.
Yeah, try to focus on the good, peaceful things that humankind does or aims to do. Personally, I focus on what kind things mankind has done or is doing to get through times when terrorism is paramount.
Cheers and God Bless.