I can't rush things...it's just how I am x3 I actually often backtrack and erase things several times until there just how I want them. Even then they don't often turn our how I'd like them to.
Rush at the end? Oh, I rush things when I've barely started. xD I just always want to finish as soon as possible, and when I do mistakes, I give up easily. Like, yesterday I had muse to draw my character Blake. And how I turned up? Well, I didn't do the sketch right and I gave up. xD I have loads of uncompleted drawings, many of them just sketches. I really have to work on being more patient.