Stay on the nhs pathway - it will prob take forever as do so over subscribed (use chose and book anywhere in country to get shortest referral time) - if she ever needs meds or mh support - a nhs diagnosis and access to camhs / psychiatrist will save you a fortune. And being ‘in the system’ helps.
in the meantime - beg, borrow or steal (joking but you get the point - somehow find the money) to get a decent private neurodevelopmental assessment . (Not just adhd - someone looking at the whole picture not just a yes or no to one diagnosis esp. as co-morbidities are so common) Use someone recognised in field / who also works for nhs . The sooner you know for sure what you are dealing with - the sooner you will have a report with recommendations and strategies that you can take to the school and ask them to implement.
ask senco to get her assessed by Ed psychologist- if she is academically able they will resist this referal - schools often only get x amount of referrals to the La Ed Pschyologist and they will prioritise the least achieving / most acting our children. Not fair but with limited resources it is the way of the world. Push hard for why she needs this assessment. I would again also look to pursue a private Ed psych assessment as information is power and will help you and the school to help her.
ask senco to put her on special needs register and ask for regular meetings with targets etc to support her around time management / concentration etc if the adhd is affecting her completing work.
personally I would not stay at a school that I feel are not listening. Moving one of my children with sen with the best thing we ever did for them as the previous school would not listen (even though there was reports coming out of our ears as they had a statement - now EHCplan.). They treated her terribly and ignored all the specialists recommendations / they didn’t want a child like mine in their perfect / high achieving school. I moved her to another local school who embraced her and did all they could to help her to learn and thrive. Sometimes you have to cut your loses and go elsewhere as some places you are just banging your head against a brick wall.
try parent parent ship (SENDIASS ) at La to get parental support with talking to school / going to meetings.
sos sen and ipsea are both superb sen charities - both websites have copious amounts of info on their re sen law / how to get support and both have helplines you can phone. Both gave me amazing advice (was a while ago as mine are grown up now - but they helped us so much)
no one cares for your daughter like you do. You have to be prepared to fight for her - not by being rude - but by being calm and assertive - asking for the right things and following up to get them implemented.
e.g. On camhs waiting list for assessment? Have you told them you will happily take a short notice cancellation. Are you calling them regularly to ask where she is in the list? Have you highlighted if she is deteriorating in anyway (e.g. if self esteem plummeting or behaviour getting worse…) no one else will push for things in the way you can. school will have countless children they have concerns about and 1 senco can only do so much chasing… you can be her greatest advocate by highlighting concerns and asking for support for her.
sen Suoport is meant to be based on need not diagnosis but we all know a diagnosis tends to make schools sit up a bit more than vague concerns. Currently you have no diagnosis - pursue one. But also highlight concerns - don’t go on about ‘suspected adhd’ - they will discount you as it is only your opinion. (However right you may be). Highlight your concerns with ‘time management, staying on task, messy hsndwriting, blurting out answers in class…’ whatever the concerns are - name them - if and when a diagnosis comes you can agree then it is part of ‘adhd’ but for the moment ficus do let in what she is struggling with and more importantly how and what they are doing to help her.