I suppose, if you had the money, time, and skill... Theoretically you could use a 3d imaging scanner to scan your face, create a model of it in autocad, use a very high detail camera to take pictures for textures, place them on the model, do a little time travel black magic, use the yet-unreleased creation kit to place this model in as a race - then select the race on character creation. Theoretically of course.

lol the easiest way would be to just pay very close attention to detail on the character creation screen. It may help to take some reference photos of different angles of your face.