Fear model:
C Ask Julia to practice a song with me. With her on the piano and me singing.
T I will embarrass myself when I need to sing in front of her.
F insecure
A do not ask her
R didn’t experience how it really is to sing in front of her,
continue to believe the thought that I will embarrass myself

Self-confidence model:
C Ask Julia to practice a song with me. With her on the piano and me singing.
T I stand up for myself
F self-confident
A ask her, sing in front of her
R made new experience, stood up for myself

I did ask her. It feels great to do kick something off that I always dreamed of doing. The actual singing will be part of another dare. 😉