If its an existence habbit you wanted to change, What works best for me from an experience is: - tracking your daily schedule and where u will usually do that habit you wanted to change, replace it with stg new. new habit such as(reading, walking, taking cold shower, self dates or watching stg entertaining) but all have to take place location wise different than the old habit takes place. - if the habit is addiction or bad habit, repenting and fasting and continues prayer will help. And keeping also a journal where u will keep track of the habit or addiction you tackled on that day. (journal will keep u for accountability and self reflecting) hope this helps.