Well I am glad that you are accepting that the issue is a mental health issue - and not a physical one. You weren't born into the wrong body / don't have the wrong physical sex characteristics - you simply have a mental health issue - and I think that is very accurate...
When you reframe the discussion as a male with a mental health issue, then it becomes important to treat the mental health issue - not provide hormones / surgery to damage the body. That you have been lied to and given the wrong 'treatment' is incredibly sad and upsetting - that we have a society that damages our young people in this way is an indictment on all of society, we should ever have allowed it to happen. Instead we should have been recognising the lie that was being propagated in telling young people that they could change sex and we should have been treating the underlying body dysmorphia - which I totally understand that someone can have.
Incidentally it is body dysmorphia not gender dysmorphia - gender is a fluid concept created as a societal stereotype of the moment which develops entirely based on being challenged and changed by men and women presenting differently and redefining how society sees that stereotype. Dysmorphia: First recorded in 1845–50; from Greek dysmorphía “misshapenness, ugliness,” equivalent to prefix dys- “hard, bad, unlucky” + morphḗ “form, shape” You can not therefore have gender dysmorphia - because however you present is how your gender becomes defined - you can choose your gender on an individual basis and define your part of 'what is a man'. You can feel dysmorphic about societal expectations, but as you are free to be the man you want, your own choice of how you express gender is solely yours, so it is not technically possible to be dysmorphic about it!
It is an immutable fact that you are born one sex and can not change it - so any chemicals / hormones / surgery can only every change the impression - it is a way of pretending to be what you are not - but you can not change and be the other sex.
The fact that you refer to yourself as a 'transwoman' is itself defining and acknowledging that such a transition is impossible - if you were able to switch sex then you would simply be a woman - but you are not, you are a man.
No man has ever changed their body construct physically or genetically to being a woman - they can't change their gametes / they can't become pregnant, or give birth, or have a period, or have eggs, they can't breast feed (and no, secretions do not count!)
So, we are back to needing to bring compassion and accurate medical care into the situation - and this should be treating the mental health issue you identify - that it hasn't is a failure of the system and that is deeply sad.