I don^t want to know how can i lose weight fast

I hate it when people are trying to instruct others instead of allowing them to live the life that they have always wanted to live. Do you understand it? You don^t have the right to tell others what is good for them as you have no idea about it. Unless you are that person you can^t be sure whether your advices are going to help him or her. That is what I think about it and I think that I am right. Unfortunately most of the people that I know are of different opinion and from time to time I have to listen to their stupid opinions. I was on a party recently where this one girl was telling me how can i lose weight fast and I have been really frustrated with it. I didn^t know her before and I couldn^t understand why she is talking to me all the time. For some reason she felt that she has more knowledge about this than I do and that this gives her the right to tell me what to do. She couldn^t understand that I don^t want to know how can i lose weight fast because I don^t need it. I am not fat and I don^t care about it. I eat healthy food and I am proud of my body. I hope that I will never meet her again. People like this usually can^t control their own life and that is why they instruct others, right?