Can one gloss the doctrine of karma as the claim that we are only really hurting ourselves?

Can one gloss the doctrine of karma as the claim that we are only really hurting ourselves? At least in everyday senses of suffering. Perhaps not including sickness, old age, and death (these seem like counter examples). But when we suffer from everyday pangs of frustration, due to e.g. frustration with our visual appearance, or lack of wealth (these are just examples). Thanks for your contribution: looking for the limits of what is and is not our own fault.