Do you know how you sound to others? One of the things I stress with my clients is to record themselves. They can record their side of a phone conversation (careful, in some states it’s illegal to record the other person without their permission), record themselves as they ‘report’ the news or discuss a movie or book with an imaginary listener, and of course record their progress as they practice their assignments.
Many clients are resistant to this, but it is one of the most important things you can do. They tell me they don’t like hearing their voice (but this is what others hear), and they dislike hearing their errors. But this self-awareness is a huge benefit to recognizing what you need to improve, and can be a great motivator as they hear the change in pronunciation. Through recording yourself, you can identify your frequently used words that are incorrect, and target them for improved production.
Most people check themselves in a mirror after getting dressed and before going out. Why? They want to see if their hair is ok and their clothing looks good. They are looking for the potential flaws that others see. Recording yourself is simply an extension of that process. If you don’t know there is a problem, you can’t fix it.