How can one regain self-confidence after failing the baccalaureate exam?

Faith in Allah and trust in Him are the foundation for a person's success in life, for He is the one who grants success and enables achievement. So, turn to Him in supplication, as it is stated in the supplications of the distressed: "O Allah, I hope for Your mercy, so do not entrust me to my soul for the blink of an eye. And set right all my affairs; there is no god but You." And be keen to exert effort and seek Allah's help, and do not despair, for a strong believer is better and more beloved to Allah. And if something befalls you, say: "It is the decree of Allah, and whatever He wills, He does," because "if only" opens the door to the work of Satan.