Hi I am 13 and I am so sad because I doint like staying at home and doig nothing I g in my room and turn on my radio and singing. I need to be a famous singer please please please help me !

I am listing to demi lavoto and I love her music. I want to be like her and I don't know how to so I need your answers . So please please please help me and also I'm 13 and want to be a FAMOUS singer and also I go in my room and turn on my radio and I sing to the music so give me advice please please please please please !