Please help me !! I am not growing!!?

I an 17 years old male and i am only 5'1 , i am pure vegetarian . I hated vegetables till the age of 15 . I never ate any veggies or any nutritious food till age 15. I ate only plain rice and plain chapati. I do not have much of hair in my body . Only now i see little hair near my sexual region but i do not have moustach on my face . I want to grow tall and get puberty. Please help me .