I'm sorry you have yet to receive replies to this post. Unfortunately, it's not a subject I know anything about. So I can't really be of help. I'm an old man who has waged a life-long struggle with gender dysphoria. And, as a result, the one thing I do know is there's no way to get rid of intrusive thoughts. The only option (at least to my knowledge) is to simply accept them and allow them to be there (because they already are.) There's a Buddhist practice which is referred to as "compassionate abiding" that has been helpful to me. Here's a link to a mental-health-oriented description of the practice:

Relieve Distress By Allowing It: Compassionate Abiding 101 | Mindset: Perspective Is Everything

May it be of benefit.