I upped my nutes substantially, switched from a 24/7 light to 18/6, and feeding 1 hour, skipping 3, feeding one, skipping three. She is starting to perk up!
in your picture, are those led light strips all squirrely on the wall there?
if so you could make a square frame of 3in wide 1/4 plywood, kinda like a picture frame. big enough to go around your hanging light. or attach to side of pot on all 4 sides. View attachment 547484