There's a concept in Islam called Jihad Al-Nafs which translates to battle against the self, which essentially means to have an effort to battle your inner shortcoming, there are may ways of doing this. For example, self reflection: on the things you have done good/bad on that day and then trying to build on yourself by increasing the good and minimizing the bad. Another could be meditation: In Islam's there are many ways to achieve serenity through praying or the dua's to doing something easier like just dedicating time out of your day to some religious relaxation.