am x-Muslim can i get help from Christianity organizations?

Answer 1

Any Christian orginazation will help you.
However, I personally recommend going to an evangelical Church I am a relitavly new Christian as well, my family are all non-believers and the church I am going to has been extremely tender in their treatment of me and my situation. No pressure from them but they have let me know that I am welcome. They have reached out to me.
So thats my little tid bit of advice for you.