Start with How I use LLMs (131 min, Andrej Karpathy), then Run your own AI (but private) (22 min, NetworkChuck). All 902 lessons here are free, from the teachers' own official uploads. You'll need laptop stand, noise-cancelling headphones, second monitor and a few more basics (about $270 of kit). The book to keep beside you: AI Engineering by Chip Huyen.