Should we postpone the chanting of the mahamantra till we are able to follow the regulative principles so as to avoid offenses?

From: Amit

Can the mantra ‘Sri Ram Jai Ram Jai Jai Ram’ provide the same benefits as the Hare Krishna maha mantra? For example, if someone wants to get free from addictions, will this mantra also help? I have a doubt that by chanting the maha mantra I will incur offenses till the point of following the regulative principles perfectly. Till that time, can I chant this other mantra? Please advise.