Choosing Whether and How to Express Emotions

The concept I felt was interesting to discuss was whether and how to express our emotions. Anytime I engage in some sort of conversation to where it's like a debate or even a civil argument, I always tense up to where I forget my words. After the conversation is over, I get like a spontaneous recovery of what I was going to or should have said. I always talk to myself, coaching myself through "next time"; if it happens next time those are going to be the first things I say. If I take into consideration "evaluating your current state", recollect myself, I'd probably be able to express the feelings that I should at that given time. After awhile, I sometimes realize that maybe it was meant for me to state some of the feelings that had slipped into the back of my mind. I do not always monitor and humble myself on certain things I express, so on the optimistic side pre consciously my emotions are sorting themselves out without my feelings getting in the way.