If you have blurred your outlines, try and trace the main blurred line with a thick pen. You will probably succeed on the next attempt and you'll cover the wobbly line somewhat with the thicker pen. Artists can use numerous pen and ink drawing techniques to produce shading transitions. https://manuelksxad.yomoblog.com/41678462/how-ink-pen-drawing-techniques-can-save-you-time-stress-and-money