Sometimes you feel like a fool for having talked in a certain way. It makes you look like a fool to yourself and to others. This is what has been happening with me nowadays and I just feel like burying myself somewhere.
It's reasonable to feel like you could have done something better in the past, but you obviously didn't know that then. We all make mistakes and have moments we would do anything to change. The fact is you wouldn't have learned how much acting differently mattered to you unless you made mistakes in the first place.
Whenever I find myself in that sort of situation I just take one sock off, hand it to the person I was talking to and then leave the room. That way their more focused on what I did then what I said.
I do this but its because I have anxiety. I have to plan everything I say and even though I appear strong and confident to everyone I always get really nervous inside for no reason and feel complelled to say something stupid or wrong. It happens to greater or lesser degrees depending on my mind state It kills me that no one in my life understands this except my mom. She knows. Everyone else just sees me as whatever they want