Now because your brain is constantly filled with these past and future thoughts,you have no time whatsoever to concentrate on the present.A conversation is like a perfomance to you,it will either be better than your last talk(fluency wise) or it will be worse ,it will never be just a conversation.You never enjoy talking nor do you really open up and say what you want to say.You are never fully aware of what is happening all around you.You are so self absorbed that you never enjoy the present.
So,tomorrow, do a simple thing.Just concentrate on the thing at hand.Whether you are talking to someone or listening to music or just sitting alone,just concentrate on the present.You will realize how much you are missing.And when you talk with someone just concentrate what you want to say and just say it without thinking about the past or future and you will see a miracle in your speech both content wise and fluency wise !!!
As always I would love your comments and if you want to send any contribution or just contact me,you know where to find firstname.lastname@example.org