After the workshop will I be able to do the exercices on my own?

If you have the book  it is not impossible. However it is strongly recommended that you refine the exercises with the instructor in a couple of practice courses. During practice classes, the instructor will correct the movements if necessary and thus make sure the correct movements are memorised. In my experience, those who also attend practice classes are much more likely to achieve improvement, as attending a practice class is both a motivation and a guarantee of regular practice, which is actually the key to the method.