I followed this book during my final year med school exams. I framed rules for myself and made it easy for me to follow them by modifying my environment. I went from partying every weekend, bunking classes and cramming just before exams to studying consistently everyday. I ended up finishing that year with the highest score in my college and a gold medal. I owe a lot to this book and I can’t recommend it enough, idc if it makes me corny to like a self help book. I’m currently prepping for another exam and working on my weight loss. I’m re reading this book to build a new system of habits for the same.