Answer:
Negative messages:
"You're not good enough."
"You're a failure."
"I don't love you anymore."
"You're not attractive."
"You'll never be successful."
"You're a disappointment."
"You're too sensitive."
"I don't trust you."
"You're not smart enough."
"You're too old/young for that."
Positive messages:
"I'm proud of you."
"You did a great job."
"I appreciate you."
"You're so talented."
"I believe in you."
"You're beautiful/handsome."
"I love you."
"You make me happy."
"You inspire me."
"You're a great person."