It was my third time snowboarding and the snow was compact and icy. I was going relatively fast for my control. Caught an edge and fell on my back with my head

It was my third time snowboarding and the snow was compact and icy. I was going relatively fast for my control. Caught an edge and fell on my back with my head doing a whiplash. I was probably unconscious for 10 seconds or so. Lay there for another half a minute to gather myself and stood up. Checked the helmet, there was a massive crack. Checked head for bleeding. No bleeding! I walked away and went to the car to get some rest. The helmet literally saved my life.