red line, stop line?

I have a last task to finish by this month. This is the red line that I must break through. Before Jacques went to Tokyo, I called him for bonvoyage. As usual, his question is when I can finish my project. I said, as usual, "it will be done in one day." He was delighted after I said so. His answer is "Oh, when I come back from Japan, you will finish your project." I hope so. I hope I would be as happy as he heard my answer. The thing is that I do not know where to put my leg when I break through the red line. Shall I stop? If I don't, where I can put my foot after I reached that point?