Katniss has many strategies to survive for herself and the people that she partner up with and cares about other people instead of just her and tries to win with the thing Haymitch. He had taught her about fake the love with Peeta or try to give some action to the people watching this big event and to impress the game makers.
Katniss is a girl with abilities that other people doesn't have. I think Gale and her own helped a lot with the survival. She had to climb the trees to survive from the careers when they tried to hunt her down, her abilities to