I've often found that even if a situation looks hopeless, sometimes all you need is to look a bit deeper.

[The draconic aura and pink hair fade away, leaving Wendy back in her normal state.]

Keep fighting, even if there doesn't look to be any way to win. Believe in your friends, even if it seems like they're about to lose. Keep taking that single step forwards, and you can go anywhere you can think of. That's what Fairy Tail is all about.