Even if you follow other people's advice and model successful people and their blueprints, you will still fail if you don't have confidence in yourself. Everything - absolutely everything - starts with you.
We all have an unknown ability, which will probably remain unknown forever. And yet that ability can become our ally. Since it’s impossible to measure that ability or give it an economic value, it’s never taken seriously.
Creativity is basically a feminine process. I'm convinced that we have in our soul, everybody, this masculine side and this feminine side. So at the end of the day, you always use this feminine creative energy to write or to do any type of art or creativity. So if I see that my protagonist is feminine, it's not more difficult, no. And even when my protagonist is masculine, I'm writing from using this feminine energy.
Instead of answering your question directly I shall quote from the Indian poet Tagore: “I slept and dreamt that life was joy/ I awoke and saw that life was service/I acted and behold, service was joy.” In fact, through my work I discover life, people, and everything which happens around us.
Don't be like those people who believe in "positive thinking" and tell themselves that they're loved and strong and capable. You don't need to do that because you know it already.