I am 19 yrs old my weight is 36 kgs nd height is 5 "2" i need to increase weight nd height pls send me some ti?

You can't increase your height. You've stopped growing. To gain weight, which you definitely need to do, you need to eat more! See a dietitian or your doctor. Don't eat junk as you will just end up unhealthy. You need to eat bigger portions and add healthy fats like nuts and avocado.