Welcome
@cathshepherd
Great to read that you now have the correct diagnosis. As
@Tdm mentioned it takes time to get your insulin doses correct ... and then they change. Sadly, they do change as you progress through your honeymoon phase and your insulin producing cells continue to die off or, more annoyingly, get a second wind as the injected insulin gives them a bit of a breather. But even at the end of this phase there are things which affect our insulin needs such as exercise. hormones and stress. Therefore, for me, it is important to understand how to adjust my insulin and not expect the same every day for the rest of my life.
You mentioned that you are now on low doses of insulin. Do you have a Libre sensor so you can tracl what is happening overnight and in response to your food, exercise, etc.?
DAFNE can take some time (TDM mentioned 2 years, for me it was 12 years and other people have mentioned there is nothing in their area) so, if you are up for it, there are on line options. The Learning Zone from Diabetes UK (the orange tab at the top of the page) is a gentle introduction and if you want anything deeper, Bertie Online is basically the online version of DAFNE.
And to supplement all the training, there is an amazing hive mind with a combined experience of 100s of years on the forum. Feel free to ask questions about anything. We have all been where you are at some point ... some of us still remember it.
TDM finished his post with his brilliant main tip so I will finish with mine - do not expect perfection. There is too much that can affect our blood sugars and we have a life to live so work out what your good enough is to balance the life you want with diabetes management (not control).