Embrace difficulty, setback, and failure

Not everything is going to go your way. Part of the GM's job is to present you with adversity and threaten the things you care about. Those challenges are meaningless unless the stakes are real, unless there's a chance you'll lose. Difficulty, setback, and failure are all key parts of playing to find out what happens.

Difficulty, setback, and failure are also an opportunity to portray a compelling character. Show us how you deal with adversity, how you rise to the challenge. Show us how loss affects you. Show us how you keep going anyway.

It's not that heroes don't fall down. It's that they get back up.