There isn't enough room in your mind for both worry and faith. You must decide which one will live there.
Worry and faith are competing for space in your mind right now. Know that our God is an Awesome God and he has everything under control. Take comfort knowing that if you truly have faith, there is nothing to worry about.
Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus.