What do you suggest? is it important to study TOEFL by the help of teacher or self-study

In my opinion, self-study is the best way to prepare TOEFL because you have to search for resourses and find another benefical way to prepare that exam. And by this way you made a big efforts to reach your aim, finally you become a master on particular area.

Who can help me to speak in English? I think best way of improving English is speaking.

How to improve speaking skill in English I consider speaking skill is the most important skill, but many people who want to learn English have many problems with it. What is the main reason for that in my view those people do not practice in English frequently. As a result they aren't able to speak as well. Another factor is that people become anxious when try to speak English this matter also relates with first problem. What do you think?

How to improve speaking skill? For example, a person have a good vocabulary treasure and knows English grammar as well and other skills of language are also good but when he comes to speak his tongue are blocked :))) What is the main reason?