Originally Posted by pemba
for example when i am into deep thought I am a completely diferent person in my mind, I seem alot smarter and articulate. But in reality I am horribly anti social and I cant even say 2 sentences to someone without getting nervous. I always forget simple vocabulary and I have horrible grammer even though english is my first language.
This is pretty common. Many people don't realise that speaking is a skill - they just assume that they can automatically translate any thoughts that form in their head into speech. Nope, it takes practice.
Personally, I recommend Toastmasters. It's a great place to practice speaking in a supportive atmosphere.