Belief matters most when everything says you should quit. Sylvester Stallone lived that truth when he was broke, nearly homeless, and expecting a baby. With only about $100 left, he wrote the script for Rocky and refused a $360,000 offer because studios wouldn’t let him star in it. To survive, he even sold his dog Butkus for $40. That decision paid off. Rocky won three Academy Awards, launched his career, and gave him the chance to buy his dog back. His story shows that trusting your vision and pushing through rejection can change everything.