The phone will be very expensive. punching the window is fine. Your hand will return to normal in 2-3 weeks, you may need to pretend to be an accident to cover the treatment costs from the insurance. There is a possibility that you may have permanent scars on your hands, you may look at that day and experience the same relief over and over again. I recommend the cheap method (Important warning, I do not recommend both, if you have to choose one, choose the cheap one)