Pcos is becoming a very common condition in girls these days because of our present lifestyle. You need to understand that Its a genetic tendency and can never get cured. It is only temporarily controlled by lifestyle modification,low carbohydrate diet,exercise, weight loss and medicines off and on.
You need to get your hormones checked like
tsh, free
testosterone,
prolactin, f/pp insulin and accordingly start medication for three to six months. The lifestyle measures a should continue so that you are less dependent on medicines