Bless! I think you speak with knowledge. It makes me happy to know someone else is actually happy.
No direct use to me. I have no idea what might make me content, and no real knowledge that I could be happy by knowing I was content.
To be content or happy you first need to find out what makes you so, but it needs to be independent from another person's doing.
If the only thing that can make you happy in life are, for example, a partner's or a parent's love, you might be doomed

You also need to detach yourself from other people's wants, or you could get stressed, unless you're a saint!