Ref carbs and qtys, you have to do what you are happy with.
Example.. me. I have absolutely no hunger. I never feel hungry. Not because I'm an anorexic or tryng to lose weight... but that is just me. So I can personally eat very little but I am very nutitionally aware and also aware of what certain foods are needed and what they do to my bloods...
I need broccoli everyday because I have anaemia and cant take iron tablets or liquid and other foods that give me iron dont travel in my colon.
So with my mashed veg and limited foods I still dont feel hungry. I dont have cravings.
My advice would be to stick to say 100g for a week.. see how you feel.. look at foods and make sure you are getting enough b12 and folate and iron. B12 and folate is mainly added to breads and cereal so check out real foods that you like that have these vitamins in. Folate is essential for women, especially of child bearing ages etc...
For me I found heavy dairy products daily were bad for me and my cholesterol. I'm better off having avocado, EVOO, and one single cream coffee.
If you feel ok on 100g for a week, with energy etc try 90g the next week or 75.
Also depending which basal you are on... my consultant goes mad with me if I alter my tresiba before 3 days at a set level. He prefers me to wait 5 days.
As your bolus needs reduce, your basal ones will too... but again you need to establish how quickly your basal needs are falling for yourself.
Humans dont adjust naturally or easily to change whether mentally or physically... so I would advise doing things in a paced manner that you can cope with...