As this is a Swyama Siddha Hanuman Mantra it does not have for being chanted for a set quantity of Mantra Repetitions for being able to utilize it. Special worship and rituals and guidelines regarding way, sitting mat, and counting rosary are certainly not recommended for chanting this Hanuman Mantra. https://glowingdirectory.com/listings13052308/hanuman-shabar-mantra-get-rid-of-all-problems-an-overview