So you need to worry about the things that worry can help.
Some things can be changed easily. Change them. Worry is not needed and is therefore unwise.
Some things take more effort to change. You may need to place great focus on those things, and that great focus is a type of worry.
But there’s no use worrying about what you cannot change. If you are an adult and would like to be taller (for instance), then any worry about your height is merely wasted energy. You are better off to put your effort into the things where that effort can bear fruit.
But whatever you do, don’t underestimate your ability to change things. Never reject anything as “beyond your ability to change ” without real thought if it really matters.