Why did maniac start running again in maniac McGee?

Maniac McGee started running again as a way to cope with his feelings of loneliness and to escape the challenges he faced in his life. After leaving the Beale household, where he found a sense of belonging, he felt lost and overwhelmed. Running became a form of freedom for him, allowing him to express his emotions and connect with his identity. Ultimately, it symbolizes his search for a place where he truly belongs.