PTSD is not failure
Having PTSD or lingering effects of trauma is not a failure on the part of the person who was traumatized, but is often a failure of their culture, their community, and/or their family to offer the proper care and support.
Your body and mind are doing what they are supposed to do in order to keep you safe and manage the effects of enduring something that was too much, too soon, too intense or not enough.
We know that when a traumatized person experiences support, affirmation and validation from those around them after the event, they are much less likely to develop symptoms.
You are not broken or weak, I am sorry those around you failed to help you in the way that you needed when you needed it.