also, does anyone know how to do my texture coords seperate from my cube, because the sides are just lines that correspond to a pixel on the side

You will need to do separate sets of texture coordinates for each face (and hence, separate vertices).

In general, it is very hard to draw a textured cube using less than 24 unique vertices, because each corner vertex will need to be a member of three distinct faces, each with its own UV coordinates.

No, need to have matching arrays of each.