You can never have enough acting training. Many aspiring actors take acting classes for a couple of weeks or months and then go and get an agent, thinking that they have all the training they need. That is not nearly enough training to say that you are a well-trained actor or actress. Make sure your classes are good and on-going. Continuous training will only make you more confident and make you better. As you can see from the list below, there is always some aspect of your acting skill that you can work on.