Ever since I was in high school, I squatted and had a horrible experience my first time. Every time I look at the squat rack, or even the smith machine, I feel as though I will fall on my ass or just snap my back. I had a crazy sensation and my legs gave out while I was squatting. I was being spotted, and everything was set up right. I was being watched by many people, so any time I think about going to a gym to squat it terrifies me. Any suggestions? Something else I could possibly do to make up for squatting? I'm very tall, which is why I think squatting seems to be so difficult for me.