Well! Tell me one thing first, Is it possible to swim if you read 50 books on how to swim without getting down into the water? I think your answer is NO. In the same way, there is NO way to speak English without speaking English. You must speak English whether it is right or wrong. Confidence comes from within. Do the same thing again and again under the guidance of someone who is better than you in English. Never forget that every master once was a disaster.