be confident of what u know.. u should also realise there r people behind u .. dont feel that u r the only one who is facing this problem. there are people who may not as good as u. many drops together make an ocean. in the same way u have to learn everything one by one.. add something to improve daily. find a new point daily, the best way of learning is observing others how they speak,, dont be afraid to speak but be proud of learning from the mistake.. no one is born perfect. its the process of improvement for all, all the best, u can reply to my mail omkar9944@gmail.com