She tends to overornament her Christmas tree with too many decorations.

The researchers studied the effects of overoxidations on the stability of the compound.

She is always overorganizing her schedule.

She tends to overorganize her schedule, planning every minute of her day.

She overorganizes every aspect of her life.

She overorganizes everything, even her sock drawer.

He tends to overorchestrate every performance.

She overoperated the machine and broke it.

He overoperates the machine.

She is overorchestrating the event to ensure every detail is perfect.