Hi
@Zorro61 and welcome from a fellow type 2 who also should probably have known better! It's not so easy to apply things to yourself, plus as a nurse I bet you are extremely overworked and probably have to snack your way through the day as and when you can. At least that's what the nurses where I work do (I'm just admin btw).
I was lucky in that I was diagnosed during lockdown and am mostly working from home so I could put a stop to the snacks and butties from Greggs. You probably won't have that luxury, so yes it will be difficult for you to start on a healthy eating pattern but you can do it. My colleagues have been super supportive and never laugh at me if I'm in the office and tucking into a box of nuts instead of the team donuts!
There are several threads here about what to eat at lunchtimes, what you had for tea yesterday etc, which are full of examples of healthy eating. I thought I'd never manage to give up carbs, but not eating spuds, bread, rice and pasta has meant I am no longer hungry. Previously, 2 hours after a bacon butty I'd be craving more food but not any more.
There is no shame in having diabetes. And no way you "should have known better". You can do this and we are all right behind you x