You have all the shape keys you need and have rigged them to your model. Now the question remains for how to create realistic ‘lip syncing’ motion for your model. In other words, how can you get the lips to move in a natural way while following audio dialogue imported into Blender. To get to here, start from the beginning to reduce confusion – https://youtube.com/playlist?list=PLwMc23U27eSGgLaFemm6i8HKScNzpJste
If you still don’t have Blender, know that it’s open source and free to use software that you can utilize for 3D creation like modeling, animation, rendering, compositing (VFX), motion tracking, 2D animation (Grease Pencil), rigging and simulations, texturing. It’s time to get it on your machine – https://blender.org/download/
