If a problem is fixable, if a situation is such that you can do something about it, then there is no need to worry. If it's not fixable, then there is no help in worrying. There is no benefit in worrying whatsoever.
If there is no solution to the problem then don't waste time worrying about it. If there is a solution to the problem then don't waste time worrying about it.
I know from having had a child, and from having been a child myself, that children will copy you. So, the best way to get them to read, is to read. The best way to get them to do anything is to do it yourself, and they will absolutely copy you. That way, you don't have to worry about what's supposedly age appropriate, a child will pick something up when the child is ready.
It used to worry me what people said about me. I'm learning not to worry as much. Sometimes you feel critics are wrong all the time, but I don 't take objection to it, because that's the way it goes. They can be wrong, they can be right. They can be cruel, they can be kind.
What may appear as truth to one person will often appear as untruth to another person. But that need not worry the seeker. When there is honest effort, it will be realised that what appears to be different truths are like apparently different countless leaves of the same tree.
I don`t know if Donald Trump`s ever been to an actual polling place, but, you know, he doesn`t even worry if what he says is true. This is just about him worried that he`s losing.