dear same problem was with me when i was preparing myself for css but with little bit hard work you can come on this problem. you should first of all make a sketch of map in your mind and then draw it on a paper. if this practice is considered difficult so another way is that do not draw a map quickly but fragment it into pieces suppose if you are going to draw a map of currents i.e north Atlantic ocean current so first of all equator should be drawn then the upper side of latin america, mexico, coastal belts of USA, Canada and so on. drawing the map does not mean to draw it perfectly instead of this you are asked just point out the regions. hope you will understand.