Three moves you can make tonight. Free.
None of these need a compass, a Kua number, new furniture, or money. Pick one. Do it before bed.
Seat the most senior person facing the door.
Command position at the dining table. The traditional reading is about respect for the elder; the modern reading is the same one we use for the bed and the desk. People who sit facing the door eat more relaxed meals.
Hang a mirror that reflects the table.
The traditional reading is that mirrors double the food (abundance). The modern reading is that a mirror makes a small dining room read as larger and the meal as longer. Either way it is one of the most consistent dining-room cures.
Eat one meal a week in the dining room. On purpose.
The room cannot do its work if it is never used. Pick one weekly meal. The slow accumulation of small rituals is the actual feng shui mechanism.