I have taught private lessons for several years in London and I worked at a top university. My specialty is writing and speaking, I have won international essay competitions and assessed examinations for MA level students.
I speak with a RP accent (London accent) and can teach you British pronunciation. As I worked at university I am familiar with admission processes for the UK, so for anyone thinking to study in the UK I can explain what you need to do and how to write your personal statement.
Learning to speak conversational English is hard, but with practice you will find that your confidence gets stronger and stronger.