Every individual have to determine the important thing they want to achieve and the habit needed to achieve what they want to achieve. Good habits are difficult to build but Bad habits are more difficult to change. The most destructive habit are not the physical things you do, The are the thinking that have condition your mind to act in a predictable way so that your life repeat a cycle constantly. Your association reinforces your habit either positively or negatively. The devil take advantage of bad habit by creating a mental sense of impossibility to break loose.