If there is one thing that I have learned in my life, it is that you have to be yourself. Be who you are and nobody else. I recommend that you learn and adapt from those who once held similar dreams to the dreams that you have now, those who are now living those dreams to the fullest, and those who have already created success for themselves. However, that doesn't mean that you should do everything that these people do. In case you haven't caught on yet, I am referring to your role model(s). Just because your role model does one thing, doesn't necessarily mean that you should always follow that same action. In the end, your success is significantly dependent on how well you stay on track of who you are.
Let me explain further...
There are basic principles that you follow on a daily basis, and that you have adapted to over time based on certain experiences. All of the experiences that you have been through as a person is the most prominent shaping factor that makes you different from everyone else in the world. Let's face it, nobody else in the world has been through the same exact experiences that you have, just like you haven't been through the same exact experiences that other people have. What happens with some people is that they cripple the reality of who they are by desiring to be somebody else so badly, that they lose sight of who they really are in the process. In prevention to this, I recommend having multiple role models to learn from. Take away a few things that you feel represent you, and dump anything that doesn't represent you. Never implement something into your life that you feel is not a good representation of who you are. It is my guess that this is where the whole idea of 'only implementing one thought that you read out of a book, and leaving the rest' comes from. It allows you to experience more than just one person's thoughts, and prevents you from becoming somebody that you're not.
When all is said and done, stay the path to who you are.
Those who stray away from the path will have nothing left.