Expressions...........

There is a dialouge in the movie "You've got mail" which I dont think I remember correctly but its interprettation is "always I have wanted to say things but never could find the right thing to say or didnt say it and always thought about it afterwards and regretted it. Today, I had to say something, I knew exatly what to say, and said it. But did'nt feel good about it."
I identify so much with this. All the time I've had things to say but didnt say it. many a times I didnt know what to say and what I should have said struck later.
In the times that I knew what to say and didnt say I wonder wether saying what i wanted to would have made me feel better. How much should one say, how much should one express is a question which comes to my mind often.
How much sould one expose her true self, How much scope of interprettation should one give, How much should one trust......... and how freely should one express.
I have been blatently honest and open to a point of being labelled as opinionated. I guess i took the leverage because I thought that the few would understand where I was coming frm and what I meant. Now I have come to realise that that too was just an illusion that I had, a realization that they too probably never knew where I came from and what I said , meant.
Do we even know wht we mean ourselves? Do we know ourselves? do we know our feelings? or do we live in the impressions and opinions that we have of ourselves?If not then how can i even say i was honest and open. I too was and am living in the image and opinion of my self. ...... ....
A full circle. I still have a lot to say.... a lot to express... a lot to write about... a lot to get clarity in my head about....
But the question of how much should i express? Wether I should say what I want to say? remains....Will the opinion and the Image I have of my self get and feel any better if I express or will I regrett saying exatly what i want to.