I wanna be a singer so bad its like my life?

I want to be a singer so bad but i live in scotland and im 15 years old i live in a town called glasgow but i dont know any record companys or anything in there i can sing my sister would play a song on the the radio and id sing it even if i didnt know and she said i sound better than the original person but i just thought she was sayen cause she was my sister but then her friend i dont know i sang infront of her and she said she was blowing away by my voice ive bein put threw hell and back in my life i really want this so bad