This course is quite large, indeed! This is, because it covers every topic that helps you develop your voice, in a clear way, and it will actually help you understand, train and enjoy your vocal technique. There is no such thing as a "quick-fix", although you can do the course as fast as you wish! I firmly believe that is necessary to understand things, in able to really change your vocal habits for the best. A conservatory education normally takes 4 years, but, although it covers everything on vocal technique that a conservatory does too, this course will not take you years. I would say that it takes a few months, but there are plenty of active exercises to do to make it fun while worthwhile! And the best part is: you can always access it later, to review lessons and to quickly look things up, that you might have forgotten.
My experience is that most teachers do not take the time to explain or explain the wrong way. I will show you in the course that you will not only understand vocal technique, but you will also be able to put it into practice. And afterwards, you will be able to sing freely, without strain, and whatever you wish and enjoy a great technique for the rest of your life!