Kristin Cashore: "Bitterness was a familiar acid that ate at her, churning in her chest and turning her blood sour."

Do the things you used to talk about doing but never did. Know when to let go and when to hold on tight. Stop rushing. Don't be intimidated to say it like it is. Stop apologizing all the time. Learn to say no, so your yes has some oomph. Spend time with the friends who lift you up, and cut loose the ones who bring you down. Stop giving your power away. Be more concerned with being interested than being interesting. Be old enough to appreciate your freedom, and young enough to enjoy it. Finally know who you are.

The world doesn't really care how we feel about things. Events go on in their own way.

Giving up and moving on are two very different things.