Do whatever it takes to understand yourself
Find out who you are, what your passions are, and what you want to do with your life, and learn the wisdom and knowledge of those who have experienced it. Having a vision of life, knowing your goals, and knowing how you want to live is the foundation for building your own confidence, self-confidence, and courage. There will come a time in your life when you don't know what to do, or you'll make the wrong decisions, but all will be well.
If you don't succeed, that's okay, because you'll be empowered to make another choice. Read books, search the internet, talk to people and take self-development courses,… these will help you. You will be amazed at how this simple step reinforces the steps before it and gives you motivation and helps you get closer to the finish line. If you don't trust and understand yourself, how can you be motivated now, how can you be motivated tomorrow?