The best tool for language learning:
The theory behind it:
This is true, I didn't ever "study" English, yet I'm pretty confident with my speech and grammar to the point I became a translator over time. When I found the ToZ I didn't understand English at all except scarce words. Upon immersing and reading over and over I've achieved fluency level, also from watching videos of people speaking natural English, unrelated to language learning at all (Pewdiepie). My younger sister achieved advanced level English even earlier through PC games and media - none of us got good English classes at school (and other people had the same classes but didn't learn any of it).
The truth is I hate methodical schooling (brainrotting), I hate writing, and I hate making charts of whatever nature. I've only felt the urge to write things down like now and translating when I really loved what I was doing. The child pill worked wonders for me and has been the working formula of the Ages, where you absorb and repeat the knowledge because your brain learned to love the process, like a child who is learning how to speak from their parents, and repeat things over and over.