Worry means being anxious or troubled over potential problems.
When you are writing exams, you don’t worry about the fact that the questions papers need to be set up – it’s not your responsibility to do it. You only “worry” about the fact that you have to study.
Worry has become the most acceptable sin. It is not categorized as “sin” anymore, but a weakness, but it remains sin.
It’s funny how humans worry about the things they don’t have control over.
Control means having power to influence or to direct people’s behavior or the course of events.
As humans, we want to have control over situations in our lives, and when we don’t we start to freak out and worry about it for no reason.
Therefore do not worry about tomorrow, for tomorrow will worry about its own things. Sufficient for the day is its own trouble.
– Matthew 6:34 NKJV
It is not your “responsibility” to worry about what has to happen tomorrow, next month, next year etc.
Do your best and God will do the rest
Focus on what you have to do, the responsibilities God gave you, and let God do His job. It’s His job to “worry” about what is not your responsibility.