One tiny addition to the suggested reading being DB/DR:
Welcome to your Crisis, by Laura Day. Directs you toward the right kind of help for YOU by first identifying YOUR style of responding to a crisis. Also keeps you from beating yourself up when you fall backwards into your typical but outgrown style. I love it. I re-read it about every quarter.
One day at a time. Ask for help. Make mistakes.
That's all the wisdom I have, and none of it's original.