Diolch yn fawr! Now I didn't say I would "master" the lessons by then...but I'm clearly learning a lot by pushing forward quickly. Hence the face-melting horror I described.
In one of Aran's automated emails to me when I started (those were great, BTW!), he suggested trying to do 5-10 sessions a day if you had the time, and he said that someone once did 15 lessons in a single day. The most I've done is 5, and that was plenty. When Aran recommended a stiff drink to celebrate my progress, that seemed like a VERY good idea.