4 tips:
(1) Write down notes while re-watching lectures
(2) reproduce notebooks in the style described by @radek - Jeremy mentioned it in class
(3) learn topics on demand - videos, MOOCs, blog posts. Each fast.ai lecture is to be treated as a springboard into all the ideas/topics covered. Don’t be afraid to scour the web.
(4) try to teach others - this is very important as it solidifies your understanding
Don’t give up. It’s hard…but that’s what cutting edge is meant to be.