God did not create us with a sinful nature, we inherited it because of the sin of Adam and Eve. Your sinful lusts come from your sinful nature, the inordinate affection comes from your sinful nature. Jesus came to pay for our sins and to give us a new nature - this will happen over our lifetime if we continue to follow and obey Him. Jesus is the source of our hope and our life. He calls us His friends if we obey Him. God loves you, Jesus loves you - follow his Word and His Spirit. I pray that you might repent and accept His forgiveness and His love.
I too experience same-gender attraction and inordinate affection, but I acknowledge that it is from my old nature and I cry out to Jesus to help me, change me and keep me safe. God bless you.