Re: Too Much, Too Soon?
A good way to plunge in, probably best if you do all the reading in advance as well.
I think you would get more value by spreading out the courses and getting some sailing time in between them, so tht you brought some experience, insight, and new questions to each level as you took it. But certainly plunging into it will give you a good start.
You'll still need to work up the experience, and hopefully find a mentor or regular program to join into to keep going forward afterwards, so you've got hands-on and advice to follow up with.