Muuu dear, if I understand you correctly, you believe your physical problems make you think and feel a certain way that causes you pain, and you do not find that pain bearable, but rather than change your thoughts and feelings you would prefer to die.
It seems you are saying that you have seen a therapist, but they only help people to think and feel differently, not change your body, so what is the use. Its your body the way you want it or death.
The thing is, thousands of trans people have the same physical problems that you have, but have joy in living because they have gotten help and done the work to change the things they can and to accept the things they cant, to learn to know the difference, and to get on with life.
You can do this too if you want. Thousands of us will tell you that life, and the joy of being yourself even with physical problems, makes it all worth it.