Our God is more than able,we may be struggling in one way or another while trusting in him but that doesn't change who he is.Look back from where he has taken you from the same God who saw you through that will see you through in this as well.David had the guts to confront because he had previous testimonies of God's ability the same God who delivers him from the bear and the Lion was going to do them same in his present situation by bringing Goliath down keep believing and keep fighting because the only way you win a fight is when you keep fighting the fight of faith