I am actually confused

Ok so me and my sister had a debate about homosexuality, trans, and hell, and this is her stance on these things.

Homosexuality- people who are homosexual can not reproduce naturally and are mentally ill

Trans- you are the gender u assigned with because of your chromosomes and you can’t change your chromosomes. Gender and sex are the same thing bc gender is on your birth certificate next to sex

Hell- people who reject god are going to hell and it is fair which I think is disgusting

Now I started deconstructing but I am new to it and some of the things she said is convincing and i am scared to go back to Christianity bc well obvious reasons.

I am agnostic so I believe 50/50 chance of their being a god.

Anyways idk what I’m asking I am just scared. I already struggle with the fear of hell and she makes it worse.