I think the Lord wills you here to this website to get sound advice, which is still to not delay and go receive absolution from a priest asap. Put the holy water, rosary beads, rcia on the back burner. Now, if you are less concerned today than yesterday, it could be that you are being scrupulous. Do not share with me what you believe are your mortal sins, but do examine your conscience through prayer and remind yourself what constitutes mortal sin:
- grave matter
- full knowledge of its gravity
- full consent and deliberate action in that sin
If the mortal sins you have on your conscience fit ALL these criteria, then my advice is to not wait until Saturday. A priest will come to you if you cannot go to him. Again, nevermind the other issues you have for your priest…first things first.
I will pray for you this afternoon.