Hi, I really need help to get a project finished for tomorrow! I have a rotating 3D cube and I want to add different text to each face, how can I do it?!

you will need to use a different 3d modelling software e.g. blender to do this.
In blender you will have to go to the UV image editor and add an image of each text to each face

consider doing things the hard way…its “better” to put the image “on” the cube, but you might consider putting a plane with a single sprite image just above each of the faces, this way you can easily adjust each plane individually…[46798-cube-with-6-different-faces.zip|46798].

otherwise i would try googling for a dice example or searching the asset store for a dice…something