Im nearsighted and have a minor prescription so i need to wear my glasses all the time but am still wondering if it's better to either watch tv or use the computer with them?

You may not need to wear glasses while using computer, if you can read screen. You need glasses to watch TV to get a clear picture. Wearing glasses will not make your vision worse. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV vaccine.