I selected my mesh, then selected the armature. I then id Control P and selected Automatic Weights, but when I move the bone, the mesh doesn’t move with it.
Here’s the link to the .blend file, I couldn’t just upload it because I’m a new user. https://www.mediafire.com/file/62p1uciqvtapw1u/Character.blend/file
You have a lot of faces overlaying so you should remove doubles, and anyway you have too many faces to make it easily workable, paintable, animable, etc… 
you will only suffer
How would I fix that? Like what keybinds would I need to do. Thanks!
you could un-subdivide or try to simplify your mesh but I think it will be easier to re-do the mesh entirely, and use Subdivision Surface to smooth it, not tons of faces, which will be unsustainable for animation anyway