A lot of Christians will do stuff that is sinful and then say they live by biblical standards. They act no different from the world, and sometimes we wonder if they are really Christians. Personally, I don't think a lot of them are. Some could be, but others are just pretenders. They know who they are. For them, they are sitting on the throne of their lives. They are trying to run their lives by their desires. It shouldn't be this way. God should be in control of our lives. He will not force us to do anything. He will tell us what we need to do, but we choose if we will obey Him. If you want to improve on this area, you must realized it's not about you anymore.