On a schedule is better always to consult someone who are more advanced and can say if you can do certain rituals aside schedule. Because of certain rituals energies are opposite and they can clash with the ones of the schedule, some can complement. But basically it is always better to wait until schedule is concluded as to not mix energies on the astral and that our cause would be as clear as possible with maximum benefit for everyone and on full power. Also one may be not wanting to give little bit energy here and there and get lesser results than do normally assigned rituals for a day and concentrate good amount of power for manifesting results on the schedule than diluting energies and getting less benefit from certain ritual.