How to make the sims look exactly like you?

Thanks! I've tried to do it that way for the most part, but maybe I just haven't done it long enough and it takes awhile like you said. I have a friend who I used to play sims with and she would always make my sim look like me alot faster because I was bad at it but now she's all the way over in Japan so I don't really have any help. Was going to post a thread asking someone to make me one based off a reference pic and upload it to the gallery but apparently I can't post links yet :P so it's kinda hard. I'll try to make it again and then maybe make the thread later. If anyone has any other advice it's welcome.