The phrase "million dollar baby" is used to convey a sense of self-worth and aspiration. The repeated lines "I want make it, so badly, a million dollar baby" mean that the person is determined to succeed and achieve greatness, likening themselves to being as valuable or successful as a "million dollar baby."
Despite the challenges and setbacks, he remains focused on his dreams, determined to prove to everyone that he is a million dollar baby destined for great success.