Starting on the 8th day of the Moon and for three days recite the following mantra 4000 times daily (a total of 12000). Thereafter, keep reciting it 108 times a day or at least every 8th day of the Moon’s circle.
Om Hreem Saraswathai Nama
You want to empower more the ritual? Use a white mala (rosary) to count the repetitions. Also offer white flowers to the Goddess. A crystal mala will also be proper, if you can find or make one. Choose white or clear crystals.