Jesus taught that we should not worry, because He knew it would be an issue for us.
“So don’t worry about tomorrow, for tomorrow will bring its own worries. Today’s trouble is enough for today.” Matthew 6:34
He also said not to worry about having what we need - like food, clothes and shelter. The thing I see a lot these days, is that we do have our needs met, so we choose to worry about other stuff - like getting our kids into the right school, or getting a promotion at work, or what will happen IF........
Worrying is a choice. It’s doubting God’s promise to take care of you according to His good plan for your life. You are His child, after all, He wants to take care of you and help you.