Offcourse you can!
If you can understand and concieve the ideas presented in this book you can be/ have/ achieve anything you want.
This book has 13 principles. Each principle is vitaly important to your success.
Napoleon Hill interviewed many rich people and one of them was Andrew Carnegie(richest man at that time). Andrew Carnegie shared with Hill his ideas of his success and Napoleon Hill promised to Carnegie to devote his next 20 years of his life studying and writing about this ideas and Think and Grow Rich is the outcome of that study.
Napoleon Hills unique writing style enables the reader to understand the concept not only intellectually but also emotionally.
This book is one of a kind. It cannot be comparded to any other book,
I also suggest you read his other books like Law of Succes also