First of all chant Ganapati Sahastranaam and then Hanuman Chalisa followed by Bhairav upasna.
Keep Kali Yantra at place of worship along with an idol of Goddess Kali and recite following Mantra 108 times daily :
ऊँ क्रीं क्रीं क्रीं ह्रीं ह्रीं हूं हूं दक्षिणे कालिके क्रीं क्रीं क्रीं ह्रीं ह्र्रीं हूं हूं स्वाहा।।
Om Kreeng Kreeng Kreeng hreeng hreeng hung hung Dakshinkalikey Kreng Kreeng Kreeng hreeg hreeg hung hung swaha.
rotate a coconut 7 times on the head of affected person and throw it in running water or break at a crossing (Chauraha) and throw its pieces in all directions.
For more effective results chant Durga Kawacham and Kalikashtakam daily.
In case of highly complicated problem deploy few pandits to perforrm Durgasaptashati chandi Yagya at home
In addition to that light a D eepak of mustard oil every day.
Keep photograph of your mother and goddess Kali with you always as it shall protect you from all types of negativity