what should i do to get the person i love...but that person care a damm for me..

First things first, love cannot be forced, it's a feeling that will be felt naturally. However, there are cases that people can learn to love someone. I suggest you try to show her how much you love her by courting her properly. Don't expect her to love you back, if she doesn't love you after you have showed her your love, the only thing you can do is to move on. Maybe she's not the one for you and you're meant for someone else