A sexologist or psychotherapist might help you. Ensure that you get to someone qualified and competent, for example listed as a member of organisations of psychotherapist or even better someone who has some external review of their compeptence. In your case, I believe you should go to a femaple pychotherapist.
This page may give some advice for your:
Treatment of Aversion to Sex.
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Today's date: Wed, 12 Aug 2020 23:11:19 +0200