There is another form of trust in yourself, where you trust your uncertainty rather than your certainty. You respond to your uncertainty not by accusing yourself, but by taking a deep breath and saying: this is difficult. I would not be so uncertain if it was not for the fact that I have come across something that truly requires caution, reflection, and long-term investigation.
It sounds humble when Socrates says that the only thing he knows is that he knows nothing. Or when it is said that wisdom lies in the recognition that one is not wise. In a sense, it is humble. However, this form of humility also exhibits self-reliance. One is uncertain not because one is unusually stupid but because some things are unusually difficult. Life sometimes surpasses the intellect.
People who trust their uncertainty express it as honest questions, instead of hiding it behind clever arguments and theses. When they express their uncertainty as questions, their work can begin. The uncertainty is then their only certainty. It shows them there is something worthy of investigation. It shows them the way, through sincere questions and rejections of premature solutions.
Sometimes weakness is a strength. Socrates relied on it. Researching persons do.