What would be the impact in terms of karma from someone killing themselves as an infant to avoid the troubled childhood they went through originally. Would it actually help them?

One might think this would be so but keep in mind that someone coming back from a future time, and wanting to alter a younger self and prevent a certain period of time, would be too late to have undone those things influencing the person from the future, because their impact would have played out already and that karma would have had the intervening time to cause changes in the individual. What happens is that there would be a karmic consequence ensuing from the moment the younger self was killed, so there would be a truncation of influences because what would then be on record would be changed in terms of the traumas experienced for the duration of that younger self in their lifetime. So, going forward, there would be a missing segment of trauma events no longer able to carry forward through a looping of time to influence the person adversely, so this would represent a potential benefit. It could be at the expense of other things that happen of a positive nature that also would be eliminated. This is why a quite serious study of consequences that could potentially arise must be done before making an attempt to alter the past. As we have commented previously, the Extraterrestrial Alliance pays little heed to these complications and over time this has caused many abrupt disruptions of the flow of karma from people’s lives as they rework events and sometimes do so repeatedly until they get a desired outcome that benefits them. So this is the cause of a number of disturbances for individuals on the scene during their maneuvers but, as with all traumas from the myriad causes, divine healing can be brought to bear to restore balance for things and sort out what will help the person in the highest and best way to recover from any perturbations causing harm.