Self sabotage

Sometimes we purposely create ourselves to fail. Fear of responsibility, consequences, or just a simple disregard towards what lies ahead. Granted that we know they're unavoidable, we still make that choice. Its so simple to blame everything else. Its so easy to justify our actions with a convincing excuse. How can we rectify such irresponsibly ways? Could it be that we all mature at our own pace, and the mistakes we make are necessary in this process? Or is that just my own, convincing excuse?