Trust is defined as a firm belief in the reliability, truth, ability, or strength of someone or something.   Trust can help bring us closer to other people. Trusting others, such as family members and friends, can reassure us that we’ll be helped when we need it. It’s the foundation of any healthy relationship — including the relationship you have with yourself.   Trusting yourself can build up your confidence, make it easier for you to make decisions, and reduce your stress levels. And the good news is that even if you don’t trust yourself now, with some effort you can build up that trust over time.