The advice provided in this book is general in nature. I do not know your personal circumstances, and therefore the information within might not be suited to your needs. While some of the information has been garnered from personal experience, much of it has been researched.
The person responsible for your survival is yourself, and you need to use your own judgement. You should seek advice from as many books and people as you can, and think long and hard before making potentially life-changing decisions.