Exact same thing happened to me. I was going for a left turn and the light was green. I saw a car coming towards me from the opposite direction, but they were pretty far away. My driving instructor just freaks out and tells me to pull into a parking lot. He tells me to get to the passengers side because I just failed the test. I did everything right, but that one little mistake caused me to fail the entire test. Surprisingly, I kept my cool because I was furious. I've been driving for four years and I already have a car, but now I have to wait another 30 days to drive it. And, another that infuriated me was the instructor's attitude towards the whole situation. He just started laughing after we returned inside the DMV place. I was seriously about to go crazy, but kept my cool. So cheer up everyone, you are not the only one who failed your driving test. Things just happen. It's part of being human.