Start with the hacker’s roadmap (how to get started in IT in 2023) (21 min, NetworkChuck), then the hacker’s roadmap (how to get started in IT in 2025) (34 min, NetworkChuck). All 328 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: CompTIA Security+ Get Certified Get Ahead by Darril Gibson.