Is it normal that i feel like i am the only introvert around ?i mean between me and people i know ..it seems that i am the only introvert? . I feel like everyone is extroverted and outgoing and talkative and sociable while i am so into myself , an introvert , shy and quiet .

People tend to think that others are the cool ones, the popular ones, the center of the pack. If you really do research to find out who all these inside track people are, you will find out that they don't know that they are, and that they are just as insecure as you are. Trust me.
I wish I had sites like this to see when I was young. It is so easy to see things for what they are when you get experience under your belt.
Best advice: No one is anymore social than you are, don't let anyone intimidate you in social atmospheres. Everyday is the first day of school out there.
However, it is very important to network and meet people in order to accomplish things and get what you want. Many people on this site think they are the only ones who want to lay in bed all day, do what they want and not have to face others. That is great if you are independently wealthy. Enjoy. For those that aren't get out there and make things happen. No one is going to come and "discover" you.
Sometimes I say to myself, what the hell do I have to lose? I should just be myself and some people will like me and some will be offended by everything I say and do. That is the way it is.
Good Luck!
Be proud to be an introvert, we're a minority, and are much more independent.
I went to a party yesterday with ONLY introverts. Everyone only spoke to the people that they came with and no-one bothered to chat to people from other social circles.
It really sucked. I'm sure it can't be that bad being a shy person among a bunch of extroverts.