If you need references to original Vatican documents to defend this position come back & I will find them… but here goes.
A few twiques if I may
You can attend the Holy Sacrifice of the Mass as often as you want. Yes wonderfully – within reason of course…one has to feed ones kids
You may be intending to ask about receiving Holy Communion on more than one occasion in a day:
That’s a totally different story.
You should normally only receive the Blessed Sacrament once per day. The Church does not have that as a discipline – one may receive twice --see above… that is yes the common practice among daily Mass goers.
It is permissible to receive a second time for just cause, but only in the context of the Mass --the Church does not say “for a just cause” but of course that is true one needs to be disposed to receive (i.e. you may not receive a second time at a Communion Service which is not a Mass, after you have already received at Mass - e.g. when a minister brings Holy Communion to your House to give to a sick relative or spouse… but you could receive then and later receive again at Mass if you had not previously communicated. yes)
If you wish to attend more than one Mass for the reasons you describe, then for a maximum of 2 times in a liturgical day you may receive Holy Communion, provided you are in a state of Grace.
If you are not in a state of Grace, you should not receive the Blessed Sacrament - Go to Confession first. Normally this requires that you do so on the Saturday as that’s when most parishes have scheduled confession times. This last part is not correct. While there is yes often scheduled confessions–one may go to confession any time there is not a requirement that one wait til Saturday. In fact if one has committed a mortal sin --feel free to go find a Priest-- indeed seek one outDon’t try to “grab the priest” just before Mass - that’s not OK on a Sunday - unless by prior agreement. It can be OK --though it may be perhaps difficult on a Sunday
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