Don’t forget all the workouts in the back of “Training and Racing with a Power Meter”, a book which would certainly help you a lot with managing your own training if you haven’t already read it.
I’ve found that book, along with Trainerday workouts and Dylan Johnson’s youtube video is more than enough to construct my own training plan from being a complete beginner with structured training. I do also use Xert, but that’s more out of curiosity about their approach.