I can't help with the course or work angle but I have used the Essences before.

I am not sure whether they worked or not but I think they did! I liked them enough to consider getting them again and considering I bought them from a health shop, I like the idea of online consultancy as a guide rather than working it all out on my own. I love the idea of getting assistance from an expert, someone who is passionate enough to start from scratch from home so I say go for it!