A huge hug to you for all that you've recently gone through. And it is 'recently' - my mum passed away 20 years ago from diabetes complications and I will always be grieving for her. I had a miscarriage just over a year ago and it exacerbated diabetes in me, as chocolate biscuits and crisps were my comfort food and at the time, comfort food was more important than anything. But then diabetes things got mixed in with depression and being deaf and I didn't know which was which - sleeping a lot, lack of balance, general not feeling good, difficulty driving at night.
As stated above, be kind to yourself. Every day. There will be days that don't work - just hopefully not every day. Many people here do cut out carbs, myself included, and it's hard because carbs are addictive. I'm happy to not eat pasta, potatoes, cereal, but bread, chocolate, biscuits have been a struggle because they are easy to just grab. Changing that habit doesn't necessarily involve eating what some people think of as 'healthy' (salads) - I tend to eat omelettes, fry-ups, lots of meat, bacon (I count bacon as its own food group!), cheese, low-carb jelly with double cream and high-cocoa chocolate grated on top. Make sure you do eat - if you don't, you'll be hungry and more likely to reach for something high carb, as you've found out.