The difference between this approach and a traditional spell book is two-fold. The first is understanding the components of the ritual. Rituals have specific purposes. There is nothing wrong with changing them to suit you, but many witches either follow traditions by rote without understanding why, or change things randomly, without rhyme or reason. Neither approach helps you progress very far in your magick. Intuition must be coupled with understanding. If you are going to create rituals, understand the foundations.