We all learn at different speeds and respond to different stimuli, so it's hard to say what works best for everyone. One fellow in our scrollsaw club had never used a scroll saw. Bought a new Dewalt and it sat in the box for a year before he set it up. In the meantime, he was coming to meetings and picking everyone's brains about blades, techniques, etc. When he did finally get started, he jumped right into cutting pretty intricate patterns with spiral blades. To this day (several years later), he has yet to cut anything with a straight blade. It was only a few months before he was knocking out Mike Williams and Jeff Zaffino portrait patterns at a remarkable pace. His only concession to the degree of difficulty was to enlarge the patterns, which minimized some of the really fragile, trouble spots. However, that posed a new challenge. He incorporated some kind of supplemental support structure around his table to help him maneuver the larger pieces on the saw. He has become quite proficient at cutting portraits.
All that said, I wouldn't necessarily recommend that a newbie take the same path he did when starting out, but it only illustrates how different we all are and there aren't necessarily any one size fits all methods of learning how to read patterns and execute the cutting.