How to make the sims look exactly like you?

Hello @487473million :) Welcome to the forums.
You need to have 50 points and 30 posts before you can become a member and can then post pictures, have a signature, post links and change your profile picture.This thread explains about it.
http://forums.thesims.com/en_US/discussion/770609/member-or-new-member-everything-you-need-to-know

You are invited to visit this thread and introduce yourself. :)
http://forums.thesims.com/en_US/discussion/817478/hello-come-and-introduce-yourself