At the end of the list of 108 names, Shiva tells Parvati, "Those who daily read these 108 names from Durga Stotram find nothing impossible in the three worlds."
And you know what? Every time I think I can't do something, every time I think it's impossible, I'm able to pull it off, somehow or another.
This is one of the wonderful things about Śakti and Śiva. Chanting, listening to, or even reading certain things results in their help, blessings, bhukti, and mukti.