I'm tired to eat diet food and im overweight?

Pick a lifestyle. Two diets have been found to prolong life: vegetarian came out on top; next was the mediteranean diet; it's worth reading about these. For the most part, avoid meat and milk products. When you walk, walk briskly and do so every day. Don't be a couch potato...It'll harm you over time. If you smoke, stop. If you do these and keep a normal blood pressure, you're in for a long life.