Train, train, train. Read books out loud, try to find a buddy that will correct you every time you make a pronunciation mistake... if you can afford it, there a

Train, train, train. Read books out loud, try to find a buddy that will correct you every time you make a pronunciation mistake... if you can afford it, there are voice coaching services and of course language training services. Your ability to speak fluently your professional language should be your #1 priority. I'm not an English native myself so I went through this as well.