Believing that we are not capable or not good enough is one of the major obstacles to personal growth. Seemingly, many people take in ideas and all sorts of content that seek to dim and diminish their feelings of self-understanding and self-worth. While other people may well have an opinion on us, it is what we feel about ourselves that propels us to glory and happiness. She says that "When we’re happy and all in love with ourselves, we can’t be bothered with the bullshit (our own or other people’s).” In many instances, people cannot even sleep over what someone has said about them. If we believe in ourselves, Sincero says, there is nothing that will happen to us with regards to what people might say. Thus, Sincero says that the most critical aspect of success is to appreciate how special you are.

Sincero continues with her attempts to convince people not to be too engrossed in what others think of them. There are many times when people say nasty things about us, and we focus a lot on them. Notably, even strangers who know nothing about us will find an excuse to voice their opinions. Sincero gives her honest opinion on this matter "Do not waste your precious time giving one single crap about what anybody else thinks of you” It cannot be any clearer than Sincero has put it. Bothering so much and getting sleepless nights over what other people are saying is not helpful at all. However, it is necessary for everyone to act based on truth and fairness. Most importantly, people need to be aware that they are personally responsible for their actions. She says, "You are responsible for what you say and do. You are not responsible for whether or not people freak out about it.” In the event where a person is convinced that he is doing the right thing, moving ahead is the most desirable thing.

Sincero says that the clarity of purpose of a person’s existence is necessary for personal happiness. For any course of action, one needs to have a clear understanding of the expected outcome. However, there are many people who do not understand the purpose of their existence and that contributes to the frustration that most people are facing. Sincero says that "Getting clear about what your unique purpose is can be the difference between living a happy, fulfilled life of abundance, choice, and expansiveness or living in the restrictive pen of your own indecision and tired old excuses.”  Sincero also says that while thinking is good, it is only through action that change can occur. A step in the right direction is necessary for the beginning of a journey towards self-accomplishment and happiness.

Don’t reinvent the wheel! While other people are exerting a lot of effort to develop new ways of doing things, these are ways that have never been tested and that may lead to devastating results. Sincero says that reinventing the wheels is not a solution to the problems that many people are going through in life. It is essential to note that it is possible to do the things that other people have been doing to succeed in life. For there to be an improvement in the way we live, it is necessary to look at the small details that have defined their success.