Welcome to the forum
@Lori39 from another late starter .
It is indeed a big shock and a lot to learn very quickly.
I do remember they brought my levels down slowly after DKA and it took a while to get the doses of the background (Basal) insulin and the quick acting insulin (Bolus) which deals with the food you eat. It is great that you are already getting to grips with carb counting. Don’t be surprised if the carb counting isn’t exact , especially whilst they are sorting your basal insulin, as this will impact your after meal levels until they get them sorted. Just use it as a time to get more familiar with the carb content of your favourites, and you will be arming yourself for the future.
I found the book T1 Diabetes in Children Adolescents and Young Adults by Ragnar Hanas an excellent resource of info. Ignore the age reference (I was 53 at ex and T1 is T1. It is well written, easy to read, just miss out the chapter of giong back to school!!
The best comparison I read was that getting used to managing T1 is like learning to drive. It seems complicated at the start but it quickly becomes mainly automatic. So it will be with all that you are diong now for your Diabetes.
Keep in touch on here. I have learnt so much from others on here and there is plenty of support and encouragement too. No questions are considered silly on here. Just ask.