Struggling to Move On from a Disappointing Experience

I am still very bothered by the placement specialist who ghosted me and caused a lot of frustration and disheartened during the stressful period. My intuition is telling me this person isn’t going to help or support me in any way. I know I should move on from what doesn’t serve me, but I am still troubled by it. The thought keeps looping in my brain. I tried exercising, meditation, praying, speaking with someone, focus what I can control, reframe from situation and saging, but it’s still not working, the thought keeps coming back. What else can I do?