This is definitely true. However, as a sort of tangent, I think there are some types of problems in our industry that are systemic (like sexism) that can perpetually inhibit someone's success. I don't want to derail this conversation into a political one, but I also don't want to unfairly tell someone "the reason you aren't successful is because you blame others for your problems" when it may in fact be the case that the person has the odds unfairly stacked against them.