The telling point is that, even when there's no weight on the bar, you can't get into a safe position at the bottom of the lift. That means you badly lack flexibility.
After you fix flexibility you can worry about your setup. Proper setup is crucial to doing the lift safely and doing the lift well. But nobody can setup properly if they can't bend down to the bar without rounding their lower back.
After you fix flexibility you can worry about your setup. Proper setup is crucial to doing the lift safely and doing the lift well. But nobody can setup properly if they can't bend down to the bar without rounding their lower back.