Last week when we were watching the VMAs, one moment stood out to us more than any others—and no, it wasn't one of Miley's outfits. Instead, it was when Demo Lovato told herself "I am enough" right before going on stage. We've all had those moments where we need a little extra encouragement, which was why it was so refreshing to see that huge pop stars have them, too. In solidarity with Demi, we tapped five of our favorite female entrepreneurs to tell us what they tell themselves when the going gets rough.