The most realistic way to approach weight loss is through nutritional education and eating awareness training. The focus should be on making changes that you feel comfortable with so that they will stay with you for life. The more knowledge you have about the foods you eat the more likely it is that you will want to make healthy choices. You should never weigh or measure portions or count calories or fat grams. This is not realistic or "normal".
It is too much work and not necessary to achieve successful weight control.