Hey, do you personaly believe that you can do better? Do you think that you didnt give this your best shot? Do you think that given one more chance you can work harder than you already have.? If answer to any of them is no then dont take a drop. Instead focus on what you have already and make the best use of it. If you feel that you didnt do justice to the paper, take the drop. But there are high chances that you already did your best.