How do I carry the weight of harm I quietly prevent?

You catch the dangerous interaction the system misses, and then you carry it alone, the near miss that no one else even saw. That weight is strange and heavy: you prevented harm, which is good, yet the closeness of it sits on you. The good you did and the fear you felt are tangled together. Let yourself separate them. The fact that you caught it is the win, the whole point of your training and care. The harm did not happen because you were there. That is not a burden to carry with dread; it is proof of why you matter in that chair. The weight will not fully leave, because you feel these things deeply, and that depth is part of what makes you good. But do not carry every near miss in silence. Tell a trusted colleague sometimes, or keep your own record of the catches. Let the saves count as loudly to you as the fears do.