Begin now to be what you will be hereafter. - Jerome

We must cast away by any contrivance, and cut out by fire and sword and contrivances of all kinds, disease from the body, ignorance from the soul, luxury from the belly, sedition from the state, discord from the family, excess from all things alike.

The best advice I can give you is this. Church tradition - especially when they do not run counter to the Faith - are to be observed in the form in which previous generations have handed them down.

Just as divorce according to the Saviour's word was not permitted from the beginning, but on account of the hardness of our heart was a concession of Moses to the human race, so too the eating of flesh was unknown until the deluge. But after the deluge, like the quails given in the desert to the murmuring people, the poison of flesh-meat was offered to our teeth. … At the beginning of the human race we neither ate flesh, nor gave bills of divorce, nor suffered circumcision for a sign. Thus we reached the deluge. But after the deluge, together with the giving of the law which no one could fulfil, flesh was given for food, and divorce was allowed to hard-hearted men, and the knife of circumcision was applied, as though the hand of God had fashioned us with something superfluous. But once Christ has come in the end of time, and Omega passed into Alpha and turned the end into the beginning, we are no longer allowed divorce, nor are we circumcised, nor do we eat flesh.