Mark Ottobre fixes a deadlift that feels unstable: sternum too low, hips too far back. He cues keeping the sternum up and thinking of your big toe as gas and heels as brakes. The false pull drill, pulling the bar without lifting it, helps you find the right starting position before each rep.
You know what you did wrong?
My sternum was more down, my hips was back.
There's quite a few things. You leant forward quite a few times. Easy cue and way to think about it, think of that as like gas and your heels as brakes. If you think of your big toe, little toe, you want to push in with your big toe, little toe, and heel. There should be 3 points of contact. In that, you were a bit rocky on quite a few of the reps, like you rocked forward. So what I want you to do this set, when you get into place, I want you to really take a pull, like just pull yourself without pulling yourself up, right? Pull and then pull. So you're going to do what's called a false pull. That's going to help you get into the right position. Then here, when you go for your next rep, just make sure this is out, this is up, and you're loading back onto that heel.