Here's another system of self-transformation

This is rather long but fascinating talk by the Founder of 'Temple of Thelema'. That is a quasi-Rosicrucian order that employs mostly Aleister Crowley's materials. Towards the end, he gives a description of the work undertaken on each of the paths of the Tree of Life diagram. At least the ones included in the 'First Order' of traditional orders.

Here's another system of self-transformation