Some eventually seek happiness and derive a sense of gratification. If guilt has a grip a person and you blame yourself for your children's problems, it is not too late to help your life stronger. Even if you aren't persuaded by all nine other reasons, read Ender's Game to keep things interesting. http://dyahcm.org/index.php?language=vi&nv=statistics&nvvithemever=t&nv_redirect=aHR0cHM6Ly9Xd3cuRnJlZWNsYXNzaWZpZWR6LmNvbS91c2VyL3Byb2ZpbGUvMTg0NDk