We have doubts about ourselves - that we aren't smart enough, strong enough, or good enough to do what we genuinely want to do which is to achieve a higher purpose in life or to succeed in life. I personally want to make a difference in this world. Those who know me well, know that I am a strong advocate for the mental health and wellbeing of frontline workers. I have read an endless amount of self-help books on topics such as this one and self-efficacy, purpose anxiety, mental health, bravery, taming your inner gremlins, and many many more.