Worrying is a waste of time, it changes nothing. It can only create stress which can have major effects on your life.
Your future is where your focus should be. You must better enjoy your life today, because the next day promises nothing.
Promise yourself to be strong, that nothing can disturb your peace of mind.Look at the sunny side of everything and make your optimism come true.
Think only of the best, work only for the best, and expect only the best. Keep your focus on the Lord.