Hello Jon, and welcome. I wish you the best of luck.
My recommendation would be to read the book (and Mark's blog), and just do as much as you can do in line with those recommendations - don't get too caught up in the experimental hacks and sometimes wild theories which lurk in the forums! One step at a time, just do as much as you can do, and stick with it - give it time. Persistence and progress, not perfection is what matters, or as Mark says, "don't let the perfect be the enemy of the good".