Drafting patterns: changing darts to princess seams

Although I have now got a blouse pattern with princess seams to use as a base, I thought it would be useful to find out how to draft one anyway. Especially since I said I would finally start trying to draft my own stuff... (I will do this... I know I always put it off every time!)

So I found this really good tutorial on Burdastyle:
Changing darts to princess seams

It actually makes it look really easy and now I feel kind silly for complaining about my pattern. mope.