[Rutles4Ever]

Remember, one must go to Mass on Sunday to fulfill the commandment to keep the Sabbath holy

Yes, keep the Sabbath Holy, but, by God, don't receive the body and blood of Christ from a layperson.

Roman Catholic is actually only required to receive Communion once a year between Palm Sunday and Trinity Sunday.

We're also actually only required to make a good confession and be absolved the moment before death in order to avoid damnation, but it's not an advisable approach.

[Pyro7480]

The dispensing of Christ's body belongs to the priest for three reasons. First, because, as was said above, he consecrates as in the person of Christ. But as Christ consecrated His body at the supper, so also He gave it to others to be partaken of by them. Accordingly, as the consecration of Christ's body belongs to the priest, so likewise does the dispensing belong to him. Secondly, because the priest is the appointed intermediary between God and the people; hence as it belongs to him to offer the people's gifts to God, so it belongs to him to deliver consecrated gifts to the people. Thirdly, because out of reverence towards this sacrament, nothing touches it, but what is consecrated; hence the corporal and the chalice are consecrated, and likewise the priest's hands, for touching this sacrament. Hence it is not lawful for anyone else to touch it except from necessity, for instance, if it were to fall upon the ground, or else in some other case of urgency.

-St. Thomas Aquinas, Summa Theologica