That's a great comment. I go though basically the same steps with my constant flow of embarrassing and/or sad memories
If they're useful then maybe I should explore this thought for a little longer, or try to speak with someone
If I have nothing to gain from it and it's just making me cringe or sad I try to do something else to distract myself
It's important to not shut these memories down immediately. Some memories really need to be explored in order for you to properly leave them in the past. And you can bottle up a bunch of emotions if you refuse to think about thoughts that come to you constantly.