May I ask, how does one determine for sure whether they have committed a mortal sin? I know the (grave matter, full knowledge and complete consent) bit, I know ‘X’ is gave, and I have knowledge that it’s grave, I don’t know about ‘full consent’ because I don’t want to do it but I know a degree of consent is involved.
If you have committed an act which is objectively a mortal sin, then confess it without worrying too much that it may have been mitigated by other factors. Just bite the bullet and confess.
I always try to be in a state of grace when receiving
The way to get into a state of grace is to go to Confession.
and if I have sinned I always seek confession when I can, but there have been times where I have been unable to go to confession before receiving the Eucharist and I have still received.
You should not have received if you were conscious of having committed what you know to be objectively a mortal sin.
*1457 Anyone who is aware of having committed a mortal sin must not receive Holy Communion, even if he experiences deep contrition, without having first received sacramental absolution, unless he has a grave reason for receiving Communion and there is no possibility of going to confession. *
Exactly.
I always pray the Rosary and Chaplet of Divine Mercy and try to be in a state of grace before receiving the Eucharist. I will be going to confession as soon as I can, but I can’t until the end of the week and I don’t even know whether I will be able to make that and then must I not receive on Sunday when I will be at Mass with friends and family? What do I do?
Don’t receive the Eucharist unless you are able to confess beforehand.
and when I do go to confession, I normally confess all of the sins I am aware of, should I confess that I have received the Eucharist before without going to confession first, even if I have already confessed those sins before?
Just say that before, you did not know that this was a sin, but now that you know, you want to confess it.
and when I was younger before I even knew X was a grave sin or didn’t give it much thought and still received with my family, even if I have previously been to confession and confessed ‘X’ but not the receiving afterwards without having been to confession bit.
If you did not know that you needed to confess it, don’t worry about it.
Also, if I had never confessed this for so many years, even when at the time I didn’t know, does that mean all of the Eucharist’s I have received was eating and drinking judgment upon my self? even if I have been deeply contrite and confessed them before?
Just briefly explain what happened the next time you go to Confession, and everything will be all right.
I don’t want to go into detail, but I want to be right with God and I don’t know what to do. I don’t know whether I can make it to confession at the end of the week and I don’t know whether tonight I have eaten and drunk judgment upon myself, especially regarding this bit - Anyone who is aware of having committed a mortal sin must not receive Holy Communion, even if he experiences deep contrition
You did not know, so you do not have to worry about it. Make an Act of Contrition by saying the Act of Contrition prayer, and ask Christ to help you get to Confession as soon as possible.
Please help. I will ask my confessor when I get the chance, but I usually just stick to my sins and don’t really have conversations or questions while in confession, I don’t even know how to bring something like this up in confession nor how to explain it. I just don’t know and I want to be right with God but without having read everything, there are many things I don’t know.
Christ judges us by what is in our hearts. If you look at the OT, when they list the penalties for sinning, if is always worded, When a man realizes he has (sinned,)…
Since the sacraments are outward signs available to us, we are obligated to rely on them rather than on our feelings or something, but we are also not to worry ourselves too much.
When you go to Confession, just say something simple like, I did not know that I needed to confess receiving the Eucharist while in a state of mortal sin; I just found out this week, so I am confessing having done so (give an approximation of how many times you might have done it–once a month for 10 years? Twice a year for five years? That sort of thing).
I’ve always thought, provided I’m contrite and I seek confession, I was doing okay.
You made a mistake, it’s ok. There is nothing more you could have done, is there

*Thank God for having made sure you found out now. *
I’m sorry for the way I’ve written this.
Thank you for reading
Josh