I would love to learn the material. The issue is there are simply not enough hours in the day. The way I'm going about it is learning the topics and principles that come up in BGS and aviation exam ... and the relevant answers.
I did spend some evenings trying to actually learn the stuff like in the A-Levels, maybe I'm slow, but I spent the best part of 5 hours on one lesson trying to get my head around some concepts. The next day I had the question bank on that topic done, with relevant topics learnt along with the answers ... all in under half the time.
I do not think it is humanely possible to learn all of this stuff in 7 months.