If a problem is fixable, if a situation is such that you can do something about it, then there is no need to worry. If it's not fixable, then there is no help in worrying. There is no benefit in worrying whatsoever.
You sometimes see a woman who would have made a Joan of Arc in another century and climate, threshing herself to pieces over all the mean worry of housekeeping.
I do know this: God does answer your prayers, but it's not always in the way you expect. God knows what's best for us, though, so there's no need to worry when things don't go how we originally wanted them to go.
The fact that I am interrupting serious work to answer these questions proves that I am so stupid that I should be penalized severely. I will be. Don't worry.
When a man points a finger at someone else, he should remember that three of his fingers are pointing at himself. Do not worry about your difficulties in mathematics; I can assure you that mine are still greater.
Do not be afraid to throw yourself on the Lord! He will not draw back and let you fall! Put your worries aside and throw yourself on him; He will welcome you and heal you.
So the best thing is to really work on yourself and opening your own heart and just letting all that stuff [worrying] go. And it is possible. It's sometimes takes a lot of time; it's not easy. And a lot of sitting with yourself and trying to work with your own heart.