A lot of good advice.
I always recommend beginners to PhotoRead 10 books a day for at least two or three months. I did around 1500 books in my first year.
From what I've learned from people over that past 20 years is that those who have done it have consistently performed the best with PhotoReading. I think it is because when you do that many books you are bound to experience spontaneous activation, and once you do your brain will work to do it again!
If you get a headache (which most people do NOT) or if you feel overwhelmed, pull back.
Be playful and curious and you can see wonderful things happen.