If i eat a lot of starches during meals, how can i obtain a healthy eating diet, and lose all my excessive weight?

Less carbs, more exe: Less carbs, more exercise.

Eat less calories: starch is not the enemy, eating more calories than you need contributes to excessive weight and eating processed high sugar foods contributes to deposition of fat. Try a balanced meal of fresh fruits and vegetables, a protein at each meal and a high fiber healthy starch such as a serving of beans, legumes. In order to lose weight, eat less calories than you need. Consult a nutrition professional