karma for an accident?

on the way home i accidentally ran over a raccoon and probably killed it. i slowed down to maybe 25 mph but was afraid to fully stop in case someone was behind me but didnt think to look in the rearview for some reason, adrenaline maybe, and i looked afterward and there was no one behind me which makes me feel even worse. my sister was in the car with me and we both started sobbing. now im afraid that karma or something is gonna make something bad happen to me or someone i care about. is there any way i can make amends or fix this? i could’ve stopped but i didnt and hate myself for it.