I have stretch marks for some years now on my belly and arms maybe due to overweight,what do i do to make them go away? i am 19 years old?

maintaining good skin health, including a diet rich in fresh fruits and vegetables, adequate hydration and normal muscle use in exercise can allow skin to heal from scars and stretch marks. Using emollient ointments can allow for the new skin to grow back more quickly, and massaging the area gently can increase blood flow and healing. Losing weight slowly will help skin's elasticity.