Faith has a role to play in life. It is not related to success. It is the other way round. Success is related to faith. Faith comes first.
Listen to what others tell you about your voice. If you're only singing to please yourself, you might as well just sing under the shower. But if you're singing for others, you are reliant on them to ask you to sing.
Often, I went in love with some friends in school. And, no, I suffered. Only later, things went better.
Because, in opera, I have to sing for people that are very far from me, instead of, when I sing a song, I try to imagine to sing like in an ear of a child.
William Thomas Green Morton