Hi guyz,I am a 17 year old girl and i weigh 45 kgs.My height is 5 feet.Can i become a model?

MY height is 5 feet and my weigh is 45 kgs and i look a little childish too and thats why everyone dicourage me dat i cannot become a model.But if not a ramp model, i think i can become a tv model bcoz it has nothing 2 do with height.preity zinta our bollywood film actress is 5'3 in height and she was a tv model before she entered d film industry.I really want 2 do modelling bcoz i love dis profession.I am a little shy too but i will overcome it.plz encourage me and tell me am i right in thinking so.Can i really become a model?tell me where shud i go to become a model.give me some email ids