This will tend to happen if you’re snapping the floss in between each tooth. Use a gentle back and forth motion to slip it between teeth, and slide it against the side of each tooth gently. If it hurts, you’re probably being too rough. Also maybe start with once per day, in the evening.
It’s also kind of childish to get offended at it, and even more childish to have your ego wrapped up in a game, especially one that you’re not even playing