While blaming ourselves sounds too much like judgment and criticism, asking ourselves to take responsibility allows us to feel a level of control. We should each know and understand the difference, so we can ensure that we are being kind both to ourselves and to all others.
Holding ourselves responsible and accountable is a good thing. It demonstrates the power we authentically own over how we respond to what happens. We accept responsibility, knowing we are able to change what we do in the future. There is no blame or "finding fault with," but rather a sense of having control over our choices and decisions in an effort to improve.