Some good lists here. Always good to remember that as adults we're always still able to grow. Taking risks is one way to do that. I'd add risks like: making conversation with someone you wouldn't normally talk to, speaking up when you normally wouldn't (at work, with friends), even listening more when your tempted to correct someone or share your opinion can support interpersonal growth. Beware that it might not always be easy or feel great. It takes practice!

On an aside, this could've been a series of posts! Take it for what it is worth to you (I know the etiquette guide says not to critique without invitation, but I guess I'll do it anyway), this is somewhat long for a web post. You've got clear and defined sections and it could be broken up into multiple shorter articles. Just wanted to share.