I am not good negotiatior, I can perform badly at conversations depending of the quality of rest in the previous night (it can be poor after workouts or after some exciting events or reading) and some other factors. I usually have not enough time to find the right answers, solutions, thoughts during negotiations. I do some heavy thinking (sometimes for days) after such negotiations and almost always I come up with better wording, ideas, solutions that I had to say and to propose during such (frequently failed) negotiations. I have resolved to send email with my afterthoughts, roundups and adjustments afterwards sometimes. I have not received answers but sometimes I feel that it could have corrected, improved the ongoing interaction.
Of course, I know that improving my quality of life, fitness and concentration should be done, but what are the general guidelines - is it customary to do such roundups and adjustments in email afterward? I am thinking about ongoing processes negotiations and not about correcting the closed deals (that can not be changed in such a way, of course).
The latest event when I have experiences such situation is during admission process to the political party when I had interview with the member of governing board. But I have experienced such situations in my school, my job and even relationships.
Maybe there are some other guidelines how to use such roundup emails as communication improvement and correction vehicles?
My question is not duplicate of Send “thank you” email after phone interview? which is about simple thank-you-email. My question is about communication and negotiation practices.