It is clear from your previous posts that you are fixated on the idea that this thrush is caused by your sexual activity. It is not. Until you can move on from that, you won't get a proper diagnosis.
There are many causes of thrush, including immune system conditions, dental issues, diabetes and medications: https://www.mayoclinic.org/diseases-conditions/oral-thrush/symptoms-causes/syc-20353533 You need to see a doctor for proper diagnosis of the cause of your persistent oral thrush.