It's no good knowing you have not achieved success, you need to know what success is and why you might not have achived it. A good teacher will tell you what you need to know.
Remember our type of dance is a partner dance, you need to be sensitive to your partner and give clear leads for the steps you want to do. Dancing is meant to be enjoyable (for both participants) and simple steps led well will be your first step on the path to success. The frame you present to your partner coupled with the body positions mentioned above are key items.