"I gotta get a truck"

This quote by Scotty McCreery is most likely describing his need to acquire a truck. It could be analyzed as a metaphor for his need to take control of his life and make his own decisions. He may be feeling the need to handle more obligation and self-reliance, and a truck might signify that. It could also be analyzed as an actual need for a truck, as he may need it for work or to transport items. It might also suggest his desire to move forward in life and take on brand-new difficulties. Whatever the reason, it is clear that Scotty McCreery is feeling the need to make a modification and handle more responsibility.