Human life is specifically meant for self-realization. It is the junction from where we can depart from the path of illusion and enter onto the free way of truth.
Life should be moulded in such a way so that we can be able to remember the Lord constantly.
Life is for the glorification of topics on Hari. If that is stopped, then what is the need is there to carry on life?
The main purpose of sannyasa life is to be in constant companionship with the Supreme Lord, either by thinking of Him within the heart or hearing of Him through aural reception.
Purport on SB 3.24.35
As far as Sankirtana is concerned, that should be continued in all circumstances. Chanting of Hare Krishna, Sankirtana is our life and soul. Side by side, if possible, then you can attempt for the ISKCON restaurant and Krishna Prasadam distribution, but this I think is secondary.
Letter to Nathan baruch 1968.
Our humble service attitude in our life is what determines what effect chanting will have on our consciousness. Otherwise we can be chanting for millions and millions of births before we actually achieve the goal.