I don't know if this is helpful at all. but you asked for beginner level and I am all about that!
I just created the 3D text and gave it a "fake" or "passive" visible light emitter. And then put an invisible light of similar color behind it to give the wall bounce. One can play with the light levels and colors to achieve the desired effects. Hope this helps.
just My 2 cents...and you'll probably want change from that!