The end of the year is always a time of reflection. It's a time to evaluate what worked what didn't. Where you had success and where you can be even more successful next year.
As former NFL GM Randy Mueller explains, doing the "crap jobs" develop character. It's part of your story and it's how you demonstrate authenticity as a leader. When people know you've failed or you've done the dirty work or overcome adversity they can better relate to you and follow your lead.
So when you evaluate 2021 don't gloss over where you've failed, overcome challenges and persevered. It's just as important as the success and the wins you've enjoyed.
You can find more insights from Randy and other leaders on YouTube.