There is some great advice there.
I am very very lucky my 9 year love boats.
Was very nervous for her when I first introduced her to ribs about 3 years ago but she took to it like a duck to water, pardon the pun
She now "drives" everything from a small tender to my 9m and she has driven a 10m!
Am not trying to teach anyone to suck eggs but these are the kinda things that have worked for me.
Not only as a dad but as a youth worker for many years.
Your a dad and you will know this but she will sense and pick up on your frustrations.
"If you show fear they will attack"
IMHO you need to take a deep breath and ride with it.
Let them drive as much as you can, this is a big thing for all kids and gives them the "WOW" factor.
Even if you itching to take control resist.
Get them on a training course, RYA Level 1.
Like most have said the key is getting your little one involved.
Make her feel useful and a real part of the crew.
Getting her doing stuff around the boat when you are getting ready to go to sea etc.
All very much IMHO but hope it help even if just a little.
"what I hear I forget, what I see I remember, what I do I understand and enjoy"
All the very best with this.