lol he was right in what he told you. Its just hard for you to create the geometry to flow like that from the way you modeled it to begin with.
Congrads on the uv mapping, makes a big difference doesnt it.
Its hard to explain how to change your geometry around the mouth, you just need to change the way the geometry flows.
There are some tools outthere that can make it easyer to change the flow of your geometry.
Ones called spinFaces.
Its really handy for changeing the flow, but takes quite of bit of practice to learn how to use it well. But if you start now, it will benifit you hugely later.
https://www.knower.it/files/SpinFaces.zip
There's nothing normal about normals. In FACT i think the are abnormal.