Cares are anxieties. Cast your care on God by giving over the control of the situation to God, let him manage the flow of circumstances, give him the right to manage your feelings and let it go by faith.
Paul was aware of how much he needed God. He can always reach us, no matter how far gone or whatever the circumstance. Get to know God in your life experiences so you can share Him with others.
Now you know there’s something this minute that you can do to obey God. Do that, and the decision with which you have been wrestling may well be taken care of in the process.