Anyone used the St. Jude's Prayer?

It's a comforting prayer. I myself try to avoid praying for anything other than the health and longevity of those I care most about. This tempted me to slip something that I'm despairing over in the blank, but then I got to thinking about St. Jude hospital. I imagine the name for it comes from this prayer/St. (obviously) and I can't get myself to think my measly little problem is even remotely worth the prayer in comparison to sick and dying children.