What do I do next? I love her so much, she's our only child and has had a lot of health issues already with her heart and GI system. She's so loving and curious and finds the world a really difficult place to manage.
She's not meeting her developmental milestones at all across the ASQ. She was doing fine at 2, but looking at the one for 3, she's missing so many things, and it's hard to see for some if it's because she can't do them or she chooses not to do them. Eg, she has no interest in copying me or participating in test situations - if I draw a straight line, she'll draw or not draw whatever she wants to draw, if I ask her what something is, there's a reasonable chance she'll just walk away or start talking about something else. She can recite numbers 1-10 only but doesn't associate them with amounts - if asked how many of something, she says her favourite number and if corrected asks why it can't be called her favourite number. She doesn't know the alphabet - she has favourite letters but doesn't see why they can't be used for everything. She barely sleeps, is still in nappies at almost 3, and gets deeply distressed by any change from her routine or any demands on her.
She has some speech (sentences but often comes across as less than her peers as she'll only speak with a few trusted people) but it's mostly learned phrases - I'm not confident she actually understands and processes questions and formulates her own responses. Eg she can have a full 'conversation' but it's all made from scripted phrases she's learned. She won't/can't do jigsaws - she can identify where a piece goes in a simple puzzle but will insist "Mummy do it", and when that doesn't happen she just leaves the jigsaw.
It feels like she's quite globally delayed, and I don't know what to do. She has a nursery placement, she has a mum and dad who are literally running themselves into the ground to try to help her. Her meltdowns/tantrums are extreme - eg DH currently has broken ribs and I'm currently recovering from a bad back injury which gives me 7/8 out of 10 level pain 24 hours a day even with analgesia and physio (it's not always possible to keep ourselves safe because we have to keep her safe). She's extremely strong - if she doesn't want to do something, it's pretty hard to get her to do it, so there's no option of "just making her" go in the car seat, for example (plus, she has hypermobility and can unfasten buckles so she can get out of every car seat restraint we or the car seat experts in several shops and parenting classes have tried. Every resource we can access, we have. We narrate and talk constantly, we have planners and letter/number toys, loads of sensory resources, creative play resources, crafts - she does these things with us every day, covering a range of areas across the week on top of nursery. She gets outside most days for active play (only don't go out in things like named storms, otherwise we wrap up warm and go out). She loves books but just flicks through pages repeatedly so she isn't actually 'reading'; she gets really distressed if a person reading is going more slowly than she wants.
We've got extra input for her at nursery, health visitor input (paeds referral going in soon - info gathering in progress), we've done parenting courses (basically told she was too complex and there was nothing for us to change in ourselves- literally told "good luck with that!"). We have experience in education, but with mainstream/academically able children. She wouldn't get in to the local pre-schools (all have 'readiness assessments' which require continence, following instructions, etc, none of which she can do). We have no family support at all - there's just the two of us and what we can either pay for or access through healthcare. We can't leave her with babysitters as nobody can manage her - she becomes hysterical at the change of person, to the point of becoming physically sick, even fainting, and sadly the level of harm that can be caused to herself and others means people don't feel able to cope. DH and I tag-team 24 hour support other than when she's at nursery, which is when we work to keep ourselves above water. No respite care available at this stage.
Screen time is minimal (15 minutes before and after swimming class, once a week - I don't like it but I need something to keep her in one place in the changing rooms) and is 'educational' content (I know it's not great but it's the best solution I could find as she cannot sit still and wait without something, and the other options that distract for short periods are books and colouring, which don't hold up well to water!).
She doesn't get or want junk food, gets offered home-cooked meals and snacks with a range of vegetables and protein. She wants to eat a very restricted diet but is gradually eating other things.
I don't know how to help her and it breaks my heart to see her try so hard and still watch her peers race ahead of her. Looking ahead, the local mainstream schools are awful (limited SEN support, poor exam results, poor inspection findings) and we can't realistically move somewhere better because there actually isn't anywhere better where we could commute to our jobs (and changing jobs would be very hard at the moment due to how employment is in our fields). There are no commutable SEN specialist schools. The private schools all have selection processes and realistically they won't see her as a loving child who needs help, but as someone whose needs would be inconvenient/incompatible. I have no idea how to home educate a child with developmental difficulties, and taking that on would mean the end of either my career or DH's, with all the financial implications of that as well as the loss of pretty much the only thing in my life (if it were me) where I haven't resoundingly failed.
I don't know if anyone will have any advice, or whether I'm just publicly confirming that I'm a failure as a parent.