People are disturbed not by things (challenges) but by their perception of things. So mind the attention you give to the challenges around before you become stressful unnecessary. With the right mind set, you can tackle any challenge that comes your way. Remember, the Bible said, God will not allow challenges bigger than us to come our way. Let's be guided and develop the right mindset towards challenges, so we don't stress ourselves to lack of concentration, which usually leads to oppression. Off course, when one is oppressed anything can happen to such a fellow.
May God grant us sound mind to be sensitive towards challenges the devil throws at our part to distract us from archiving our goals. God bless you richly.