stop worrying about things I can't change

This is a hard one, but I think I’m doing pretty well at it. I think what oddly helps me is that there is so much to worry about that I can’t handle it all, so I just end up focusing on just the things I can do something about in the here-and-now. It doesn’t always work, since I still sometimes wish I could do something about removing some of those big stresses from my life. But oh, well.
Probably still one of the most difficult parts of this is drawing that oh-so-important line of distinction between not worrying and not caring—to show others that while I’m not worrying about things, I do still care.

I don’t know why I’ve always been such a worrier. I have a feeling, though, that part of it is that I don’t really know how to show that I care without letting it really affect me personally—thus, the worry.

Maybe I should try the serenity prayer as my new mantra:

God grant me the serenity
to accept the things I cannot change;
courage to change the things I can;
and wisdom to know the difference.

Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
Taking, as He did, this sinful world
as it is, not as I would have it;
Trusting that He will make all things right
if I surrender to His Will;
That I may be reasonably happy in this life
and supremely happy with Him
Forever in the next.
Amen.

—Reinhold Niebuhr