I feel your pain, toilet training a child is hard, toilet training a child with additional needs is SO hard. DD3 (nearly 4) is now toilet trained at 3.5, I can’t believe it. She is autistic (without an official diagnosis yet but we’re on waitlist) and has a speech & language delay too, I’m not sure if she’s demand avoidant, I guess she definitely has been in the past with potty training! We tried when she was about 2.10 and it was a disaster - complete refusal to sit on potty and accidents everywhere, we gave up as she was just getting so upset!
We decided to try again at 3.5 as I knew deep down she understood what she was meant to do, she just didn’t want to/didn’t want to have to deal with change/was probably a bit scared/anxious about it all. Also she had started sitting on toilet before bath every night which was a massive breakthrough! Second time around we were more prepared - I wrote out short scripts and taped them up all over the house so DH would remember to use them, I think this is key when dealing with a language delayed child, you must keep language simple & consistent (“you peed in your pants/on the floor, pee goes in the toilet”, “toilet time!”, “you’re peeing, pee goes in the toilet”, etc). Similarly, nursery/grandparents/whoever else your child interacts with should be told about the scripts/language you are using at home and they need to follow suit. DD isn’t motivated by rewards, she would’ve ripped up a star chart, she can be motivated by food, so I decided she would get a choc button if she got a poo in toilet. We also got her a special book about one of her favourite shows and she ONLY got to look at this when she was sat on the toilet.
The biggest thing was just taking her nappies away and letting her have accidents then being consistent with our language (“you’ve peed on the floor, pee goes in the toilet”). It took about 4 weeks but then it started to click that actually, it feels nicer doing a pee/poo in the toilet than in my pants. We also tried to be as chill & calm about it as possible and just matter of factly say our scripts every single day. DD also isn’t a fan of lots of praise & fanfare so when she did do a pee in the toilet, it was just “you did a pee in the toilet, brilliant.” And moved on, this definitely helped DD feel it was less of a big deal/something to be anxious about.
It was really hard, I thought she wasn’t going to do it and did think about putting her back in nappies but I’m so glad we didn’t! 6 weeks later and she now takes herself to toilet, still needs help with wiping and pulling pants/trousers up properly but she’s doing amazing. If you’d told me 6 months ago that we’d be here I wouldn’t have believed you.
What does your gut say - do you think your son can do it? If not, maybe try again in 3-6 months?