I would definitely reach out to Lulu Luckock (Simple-Family-Connection) if you search her on google. She is local, spent a lot of time working with young children and has a very warm and calm nature. She will be able to help. Good luck!
I say this in all gentleness as I've been there with one of my now adult children: we needed family therapy as some of it was us.
It wasn't nice and really did sort it out.
Super nanny programmes on tv show this.
Please don't take this as an insult because it's not meant that way.