If you say you were born the wrong sex, and you believe in God, you’re committing blasphemy, because you’re accusing the Almighty of making a mistake, which God does not do. You’re showing contempt for God’s created order, saying God did you wrong at birth. How dare you! Who do you think you are?
If you say you were born the wrong sex, and you don’t believe in God, but somehow think ‘nature’ made a mistake, you’re a fool, because according to non-theist, materialist dogma, there is no absolute right or wrong, and therefore ‘nature’ cannot be said to make a mistake, and so while you may dislike what nature has given you, you can’t actually believe you were done wrong by… who; who could you blame it on? (And according to Scripture, you’re already a fool for denying God – see Psalm 14:1 and Psalm 53:1. A damned fool.)
If you recognize the absurdity of believing you were born the wrong sex, but still feel that you are other than what you are, then in a sane, healthy society, you could seek counselling and/or treatment, and society should be willing to help you to become at peace with what you were born as.
(Alas, we are no longer a sane, healthy society in the West; we would not only encourage people to embrace their delusions, but chastise those who call a spade a spade, those who rightfully recognize that you can’t actually become a member of the opposite sex with the same reproductive capacity someone born into that sex has; we can surgically manipulate flesh, and pretend to de-construct / reconstruct genitalia into whatever shapes we want (like making balloon animals), but we can’t ACTUALLY make a man into a woman, or a woman into a man. If you’re a mutilated man, you’re still a man, but you’ll never sire children – nor bear any; ditto if you’re a mutilated woman.)
But what you can still do, is repent of your hatred towards / disbelief in God, ask His forgiveness for your sins (same as the rest of us must do, too), and ask Him to help you to come to acceptance of the sex into which you were born. And then join us in resisting / fighting the wickedness of the modern world.