Expressions !!

To express myself (through any medium) has always always been a problem area for me.
Though that does not mean that i am not good at it ! It's just like that, sometimes i cant convey my sayings properly(according to listener..). I sometimes have so much things to say but either i don't convey them properly or people don't get it my way....
The reason behind this is,
there are lot of things going on in my mind simultaneously. and the thoughts are not streamed properly during communication.
Another important thing i have noticed is, expression of FEELINGS ..
i might sound rude in the interactions (especially in first few) as i don't like to exhibit my emotions (or feelings, whatever...) to a stranger. My very close friend once told me that " You are quite strange person, u create a different image with different persons ". When i thought about it, i think i don't do this intentionally but this is partially true..
This means i behave with the people accordingly.. (suitable to them ??)

Though this reflects my adjustability to some extent, i now think that this will not help me in long run. Recently i have noticed lack of assertiveness in my thought process, perhaps due to which i get carried away with people. I will have to give some time and positively do something about this.
I hope that writing my own thoughts will, in some or the other way, help me in re-orientation of myself (if needed).