Do you think that this is an over-reaction, on your behalf, or an over-sight, in the sense that it is more moving over or towards that of being a fixation - in that, you can't make a mistake, or you hyper-focus in on it & etc. (& to an unnecessary degree?). Or do you feel that it is perfectly natural, normal, and healthy amount for you to be concerned with it? Was it a massive mistake, or error? How would others in your shoes, who made a similar - handle it? Hopefully, you can find some answers as to what you did, or did not do, and then are able to put in proper perspective, learn from it--if helpful? . . . & then, be able to move on from it, so that it does not continue to hinder you, or wear/drag you down.
Also sorry to hear of the guilt and shame being so prominent or profound right now. You have the right to feel the way you do over what has been done to you by others. It's okay to feel that way too, wishing that it didn't have to be this way and that you'd had an experience in life free from these actions of others who'd hurt you. Always hard to compare though, so just remember that. Often leads to improper analysis. We'll overvalue something - maybe on their end / & then, conversely, undervalue something - of ours. Anyway, hope you have a better day today!