Sundays, Tuesdays and Fridays are auspicious days for Goddess. These days it is better to worship the Goddess by lighting a lamp in the evening.
Courage will be born in the mind if you bathe in the evenings on Sundays, Tuesdays and Fridays and recite this simple sloka 108 times to Goddess Durga with a pure mind. Get the energy to defeat enemies. No evil force will approach you.
Mantra:
Om Katyayanaya Vidmahe
Kanyakumari Dimahi
Tanno Durgiprasodayat
Meaning: Born the daughter of a Maharishi named Katyayanaya, who is always young, we worship your foot of Durga who can remove the mental confusion of those who worship you