As this is a Swyama Siddha Hanuman Mantra it doesn't have being chanted for a set amount of Mantra Repetitions for with the ability to utilize it. Exclusive worship and rituals and guidelines with regards to path, sitting down mat, and counting rosary are certainly not advised for chanting this https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s