By being optimistic always. You can't succeed in life with a negative sight of life. Ofcourse, learn from your mistakes. We all know that everything happens for a reason. With this, you can create a brave person within you. You also need humility implanted within yourself because being humble can create a better self, not just within you but also to the others. With these three ingredient mix together, these can help you hurdle that barricade that blocks the aisle of success.