To Sing the Durga Saptashati Mantra, the familiarity with obtaining siddhi, which implies the attainment of mastery over the mantra, may be the First of all move. The aim could possibly be attained by the private recitation of the sacred word 108 occasions in a day, for consecutive 21 days. https://www.youtube.com/shorts/5VeSyP9JRw0