Compare the interior design training schools that are avialble in your area online. You can learn a great deal about them in this regard. Take some time to determine if they are the right fit for you. Which one gives you more of the education that you want?
Interior design training is almost always a necessary thing. It provides you with the ability to meet your specific needs and goals. With training through a professional school, you can excel in the field later. Some schools are looked at higher than others are.