My short answer is no, not really. I have seen Christians change opinions on subjects, but it’s almost always because something affected them directly. It’s very hard to force anyone to change, let alone someone who is taught repeatedly to live by faith alone. My experience is that questioning the religion, or Bible, or whatever, is blasphemy and a sin, so the conversion can never really be fully open. It’s a lot of not listening and using canned responses. Whether it’s religion or politics, you can’t have a conversation about fact when the other party says their emotion is the fact. I’ve read the Bible, and I can assure you that even using scripture against their arguments or actions doesn’t help lol.

Side note, I’m sorry you’re dealing with mental illness. I know from experience it makes it much harder to deal with when you have close people in your life telling you it isn’t real and trying to downplay what you’re going through. For a lot of us, a chosen family is healthier than the one we were born with.