Definitely look down into a mirror. I used to be so twitchy too, but when I started looking down in a mirror, all started to go smoothly. Also, if you are new to it, it's best using a pencil or something sturdy to work around the eyelashes if you use eyeliner. Liquid or pencil works nice.
Cosplay 1: Sailor Venus (Commissioner failed to make 4 month deadline)
Update: August 10th.... still nothing.
Reality: Recycled or no cosplay at all. Got to love commissioning! Thanks everyone!! Serious thanks to Dulcinea, who actually made the deadline for the accessories far in advance and of outstanding quality. Sucks they won't be used.