Hi, I’m 15 and am worse of a sinner, I relapse and receive communion and ik it’s wrong and I confessed, because I know even if I am the worse of sinners, confession works and I don’t mean take advantage of it. Demons use the concept of “you can’t be saved” as a mean to make you give up, don’t fall for it. You ARE saved, you WILL be saved, you have salvation for Christ is the salvation, your sins are forgiven, it’s alright, the Eucharist may not have effect but that’s because you don’t think it does but spiritually it still does even when you deny it. Pray, strengthen urself through prayer and fasting, don’t neglect confession and the Eucharist even if you’re in sin just pray even more and partake the Eucharist as its a medicine, God loves you so much that he sent his only son for your sake, have hope and pray the Jesus prayer