As it is a Swyama Siddha Hanuman Mantra it doesn't have to be chanted for a set amount of Mantra Repetitions for having the ability to use it. Special worship and rituals and procedures pertaining to way, sitting mat, and counting rosary will not be advisable for chanting this Hanuman https://cypriotdirectory.com/listings13066555/little-known-facts-about-hanuman-shabar-mantra-get-rid-of-all-problems