You don’t have time to worry about the cases you lost, the mistakes you made, or the people who aren’t happy about something you did or didn’t do.
You can learn from them, and you should, but don’t dwell on them. You have other things to do.
Someone criticized you? Didn’t keep their promise? Dented your car?
Let it go.
Stop worrying about politics, traffic, and world events. Unless you’re getting paid to worry about something, let it go.
Let go of bad news. If it’s news, it’s already happened. Focus on the future.
Professionally, focus on your legal work, marketing, and managing your practice or career.
Personally, focus on what you can do and stop worrying about things you don’t control.