Sometimes a diagnosis is more of a challenge. My partner has been losing his vision for over 20 years [it started in his 30s] and it looks like glaucoma but it’s not. His optic nerve is basically disintegrating and he’s losing the same cells the glaucoma suffers do but the treatment for glaucoma barely slows it down. He’s actually had surgery to lower his IO pressure because the drops were no longer working.

So sorry you’re going through this and I know it’s not terribly helpful but we are fortunate to live in a time where assistive technology for low vision and blind people is a lot better than it was 20 years ago. There are a lot of good posts in this forum that may be useful to you going forward

I also have CRD. I'm waiting for my genetic test to find out which type. I'm also a mom. People have also treated me badly. Brushed me off like glasses will fix it. Personally, I find ways to keep my independence. My kids and husband are my everything. I do all I can still and find new ways to learn. I go through the grieving process for everything I lose as I lose it, and move on. I don't live in that depression or it'll consume me. I've lost a lot of friends and family. People are either uncomfortable or they're jerks. I have learned that the people who genuinely care and want to stay will stay. I'm sorry that you're going through this. It's not fair and it's not easy.

My wife started losing her vision at 30. The first thing to go was color. Greens looked purple and her vision slowly started worsening. Some of her friends suggested she needed a psychiatrist. The vision doctors eventually acknowledged her vision was getting worse but couldn't come up with a reason. Eventually, a specialist found that it was a genetic condition called Progressive Cone Dystrophy. I read your post to my wife and she says that's how it happened with her. No one believed her.
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If they can't find any reason for your vision loss, look at this as a possibility.

https://rarediseases.org/rare-diseases/cone-dystrophy/

Your family are arseholes. They should be there to support you and not berate you. Do you have supportive friends?

I’m soo sorry you’ve been treated this way, I hope your family comes to realise that you aren’t milking anything and I am here if you want to message me! ❤️

Just know that you can rise above your challenges, overcome your blindness. A lot of people just consider me another person. Not a blind person. Sometimes people forget that I am blind because I don’t act blind. And it’s like oh right. And we both laugh a little. I’ve never had much vision, I lost it all when I was eight years old. I’ve accomplished quite a bit in my life. I am quite well known in my community, steped up to leadership a handful of times. Represented a time or too. My accomplishments are quite numerous.I am not saying this to brag but saying this to say so what? I am blind. So what? You are blind. So who’s to say you can’t? Who’s to stop you? Being blind isn’t the end of the world. It isn’t goodbye. It isn’t you can’t do anything anymore. For a lot of things there is an adaptation. If there is a will there is a way.. You can still be the awesome mum you’ve always been. I hang out in the non-blind communities more and no one would no the difference if I didn’t carry around a cane and couldn’t actually see things..

If you have determination and the resilience to find the truth and to keep going to keep finding a road forward it is absolutely possible. If I can do it why can’t you?

Ask questions, I am absolutely a open book. Get some independent living training. Get some blind job training and tech training and there you go no different then you were, maybe more awesome than you ever were. I suggest you try to be very pragmatic at this.