The humans behave almost always like a customary animal. This is due to the mental and emotional wear that implies to assume a change in our habits, we like the comfort. We must eliminate the habit of putting on a scale the proposal to initiate a change to renounce our comfort zone. As you have expressed, it is by introducing small goals that we achieve the final goal of changing, until our conscience assumes that it is possible to change and that the results of that are worthwhile.