Okay I do my eyeliner first on both sides & kind of see the one I like better than use my eyeshadow & put it on but also use to shape the one side you didn't like to the shape of the other. Then I put black eyeshadow over the eyeliner because it makes it last longer. Sorry for my run-on sentences lol.
The best thing you can do is take a good picture of your face with your makeup on, under good lighting and everything, and title it "New to Makeup, CCW" or something (CCW, critique comments welcome). A lot of people will comment on your post and help you out.