Who said "I've seen what happens when you give up on yourself."?

This quote is attributed to Cassie Lang.

I've seen what happens when you give up on yourself. - Cassie Lang

"I've seen what happens when you give up on yourself."

Cassie Lang Perseverance

"Being small doesn't mean you can't make a big difference."

"I've learned that size is just a number when your heart is in the right place."

"Dad always says the best adventures are the ones you don't plan for."

"Growing up means learning to stand up for what you believe in."

"Perseverance is the key to success."

"Don't give up on what you believe in."

"I've been through worse."

"You learn to live with the pain."