If you have not read this book, you need to. This is the FIRE/boglehead bible. Honestly, this was the first book that really opened my eyes to low-cost index fund investing. It made so much sense and provided the anecdotes and evidence I personally needed to really take the long view.
This book led me to sell off my individual stock picks, stop obsessing over the market, and drastically simplify my investing strategy. After roughly two years, this is an snapshot of my portfolio: