Stress is a very common mental health issue. There is no way you can avoid this. What you need to do is learn how to cope with stress and how to manage your stress. Here are my favorite ways to manage stress.
Watch feel-good movies
Go for a walk
I pray. I figure as long as I'm dwelling on something that stresses me out, I might as well not waste the time worrying. Prayer calmes me down and can affect the outcome of the situation in a positive way.
Oh yes, I wasn't saying otherwise. I hope there is somebody out there that cares about us and is there to guide us and take care of us. I'm not an avid believer in God, but I am not against the idea either.
I do not believe the bible is God's word though. Does that make me a bad person...?