Why is it that I'm so lucky?

I mean, I live in the wealthiest nation in the world. I eat when I want to. I know no shortage of food or clothing, nor do I have to worry about diseases, war, or persecution. Why is it that I get to live in such luxury, but some kid my age in Africa gets nothing. I was thinking about this and it really disturbed me. I have a baby brother who is nine months old. He's the happiest little boy you'll ever meet. But I just thought it was kind of unfair that he gets the loving parents, healthy food, and enrichment toys, but there are thousands of kids his age who might not be able to get enough nutrition out of their next meal to survive. Anyone else have these thoughts? Anyway I can feel better about this? I give money to charities, but I know this is a vain attempt to fix a problem bigger than money.