So my advice to you is that either you become a regular householder, giving 50% of your earnings to Krishna, 25% for family, and 25% for savings, or else you strictly follow the principles of brahmacari life. A brahmacari has nothing to do except serve his Spiritual Master. That is the injunction of the Bhagavata. A brahmacari is supposed to work as a menial servant of the Spiritual Master, and whatever collection he gets, it becomes the Spiritual Master's property, not the brahmacari's. That is real brahmacari life. If a brahmacari earns money for his sense gratification, that is not brahmacari life. Better one should become householder and live peacefully.
Letter to Rayarama, 29 June, 1969