Taking life too seriously, for one. That's a good way to miss things. Taking ideas seriously... until they're all you have, and people start looking less like people and more like pawns.

[He can't believe he's trying to give life advice to Ken. Like Justin's qualified to talk about good life choices.]

Don't let yourself stay miserable, I guess. I don't think you'll have trouble with that, but I'm still trying to learn.