Widen your grip before you get under the bar. Get under the bar and place it on your traps. Slide forward against the bar until you feel it "catch" just under the spine of the scaps and the above the rear delts. You may have to lift the elbows
slightly to stop the bar, but don't crank them way the hell upward. Walk the hands in toward your shoulders, keeping your wrists as neutral as possible. A little discomfort is normal, and you'll loosen up as you warm up. Lift the chest to set the thoracic spine in extension, and the bar should be trapped nicely in place. Correct bar position and security will make sure you can lean over confidently.