*hugs*
well first its a good thing you have a SO who is supportive

You could have a look here for a few thoughts:
https://www.susans.org/forums/index.php/topic,184920.msg1644403.html#msg1644403And you could look up the genderbread person. The differences between gender identity, gender expression, attraction etc are explained there.
You can click on the picture and watch it zoomed to read the smaller prints.
Please do not take the comments on youtube as representative for the whole population. There are often very inappropriate comments, imo by frustrated people, which are erased on other websites. Its not reasonable, and not all people are like that.
I personally disregard them, and concentrate on other websites, which try to give a better picture of possible reactions.
Well its up to you what you say since you know them best...
I'd say take the time you need...
its a process, but many have gone it before and succeeded, and people here will try to support you.
Well concerning religion to me it should be about love... not written words...
And you might keep asking questions, alone writing might help getting a better view...
hugs