When people ask me this question we always reply with another question – “Do you really want to completely rid your speech of its accent?” In our experience, an accent, providing it doesn’t cloud your speech or mask other peoples’ understanding of what you’re saying, is a valuable asset. Clarity, and the understanding of how English sounds are made, is what gives people confidence. You will never completely lose the rhythm of your first language, which will add colour to your spoken English. People will be too busy listening to what you’re saying to bother about whether or not English is your first language.