Great question. There are many self help books written about weight reduction, increasing wealth, living happily and other topics of self improvement we all want to achieve. What is forgotten is self help means there is work to be done by the individual. Just because they read the book or listen to a self help guru will change occur. For many immediate results may be achieved but not all can achieve the same results. Individuals are different and what works for one will not work for others. When it doesn't does it mean the promises were false.
Some cases yes, others no. The results time frame may be different. For years, self help books have depended on the charisma of the person who is promoting their solutions. One book that we can depend on for help is the Bible. It's message is eternal and has no false promises. It does require each of us making a decision and understanding that God has made us unique and wonderful capable of accomplishing great things. When we realize our calling, we find it easier to succeed understanding self help is a decision to be all we can be.