How can I cocentrate on my studies
I am 16 years old girl and I live with my elder sister and father and my mother don't live with us. My sis is my best friend and whenever I am in pain,in any kind of trouble I share with her but now she has make a boyfriend and she chat with him frm 7am to 12 pm and never talk to me. I don't like that boy because I think he is flirty . He said to her that he love her but can't marry her because of his family after that my sister love her. I am very sad because of this, I can't see her in this situation and that's why I can not concentrate on my studies. I try to telll her that he is not right guy for you but she don't want to understand and stopped talking to me. I am shocked that because of a silly guy my sis is doing this type of behaviour with me. I am in 12th class and science student, I can not concentrate on my studies.