I have a very good suggestion that helps me to take my time in drawing. I ususally listen to music as I draw, the ones I listen to are the ones I like the most so hardly get boried but when I draw though, I draw cause I feel like it and really want to do it for something special.
Work a bit slower if needed do bit by bit and take time in it, you will be suprised at the end how it comes out

most drawing takes me about a hour to do, but that only the weak lines I draw that can easily be rubbed up if you make a mistake and do it over again.
Keep your work up, your improving
