Can i have communion after having a disagreement with my mother?

Hello! I've always struggled with the fourth mandament because i have a short temper and so does my mom, when she is in a bad day. I want to know where do we cross the line between "normal disagreement that happens here and there" and "sinful dishonour, mortal sin". I want to make it clear that in my last disagreement with her, i did not offend her (i only called her dramatic, which i regret) and just complanained about her orders, but i endend getting very upset and raising my voice when she did too. I don't know if that counts as mortal sin. I know that turning down on the Euchatist is also a sin, but i don't want to comitt a bigger sin by sacrilege. I am trying to schedule a confession before saturday/sunday mass but it's kind of hard to schedule them in my town