Sadly many, many people come across this DN's attitude. It's up to us to re-educate them.
My DNs so far have been very supportive. You can't argue with 122 to 35 in 4/5 months.
Not sure what I would do if I came across a dinosaur. If they were completely closed minded I would probably smile sweetly and walk away.
@atad are you using the mySugr app? Record your food and readings. After a week or so it will give you an estimated HbA1c. I found it highly motivating when I was just starting out. It's free unless you want to export data. You can turn off the sound in settings. Great for kids, not so great at my age!
I think you're doing great