Next time, put questions like this in the Gameplay forum. But I will answer it.
Keep your feet as close to the pad as possible. Understand that you don't necessarily have to jump to hit the step. Rather apply pressure at the same time on both arrows. Also just move your feet slightly to the arrow. Your foot doesn't have to cover it, and is still should register. Of course, this all depends on the type of pad you have. If it helps, try using the bar.
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All I got this Christmas was a dick in a box.