Well, she is a 10 year old, so those coping mechanisms are probably not well developed.
And she is a 10 year old with access to too much information and too much knowledge in the information age/internet age we live in.
How else does a 10 year old come up with the knowledge of how to kill themselves?
I can’t imagine growing up in this age. When I was bullied, I got to go home and not see or interact with the bullies. So I got peace of mind for many hours a day. Now, it never stops.
No emotions necessary to recognize some other more serious problems in play.
If she was old and/or enough to plan and execute a suicide, she was at least 2 years older than the point where she should have had coping skills.
PS, the Taliban don’t get PTSD.