Glad the mantra is working.
However... I find it a bit strange she terminated with you after 1.5 sessions. Even if she really believes what you feel and say, this is not usual practice. At the least, you would schedule a final session, to wrap up and process what has happened in your sessions. It's good that she left the door open, so to speak, but even if things are going well, it seems like she would want to check in with you in 2 weeks or a month. Things like flashbacks and intrusive thoughts don't go away so quickly.
Just my opinion.