Oh my, this sounds like you aren't getting adequate support at all.
First, we cannot give dosing advice, we can only share our own experience.
I have no idea what I’m supposed to do regarding dosage. And nobody in the NHS or the doctors seems able to tell me what units of Novorapid to take beyond take 2 units and check in 2 hours. Then if said blood results are still high take another 2 units and repeat until I’m at the desired result. Is this really how you medicate yourself?
I was misdiagnosed as a T2 for 2 years, and on insulin for most of this time.
When I first started on Novorapid, my GP's practice nurse was the one overseeing my treatment.
I started with a similar dose before meals, but I also kept logs of what I was eating (how many carbs approximately in each meal), and blood glucose before and two hours after eating.
So if I had a meal of, say, 15 grams of carbs, and my post meal reading was way higher than before, I knew that 15 grams of carbs needed more insulin, so I tried with a little more next time. My diabetes nurse agreed with this approach.
Over time, this allowed me to work out how much insulin I needed for how much carbs, much like T1's are taught to do.
Take today, for example. My morning bloods stood at 19.3
I'm puzzled why you're only on a quick acting insulin. Those high fasting numbers might mean a basal insulin could be very helpful.
Can you discuss this with your HCP?
T1's (like I turned out to be) are usually on two types of insulin: A long acting basal, which is aimed to keep you mostly steady when not eating, and a quick acting bolus like your Novorapid. I was put on this approach when I was still thought to be a T2.
The basal is taken at the same dose at the same time of day, the bolus is taken to deal with food. How much bolus to take depends on the amount of carbs in the food and your own insulin to carbs ratio (which takes time and logging your data to work out).
You might like to have a look at this course, it's aimed at T1's but it may be helpful in understanding how to work out the right doses for you:
https://www.bertieonline.org.uk/