I'm only brave when I have to be

I'm only brave when I have to be. I'm only brave when I have to be I’m only brave when I have to be.Being brave doesn’t mean yo i have been brave for long,i decide to live only for you. my friends encouraged me to be brave when i met difficulties I'm so brave I decided to brave long as you only live I'm very glad to be have I'm a bitch when I want to be I want to be a m___ when I’m older I want to be a smart and brave person. 歌词中有it is time to be brave ……because i'm brave……女声的,英文歌曲名是什么