Hi Toby,
I was only diagnosed in June as T2. I have to say the forum is great - ask and ask and ask as many questions as you can - I have even repeated my questions and nobody seems to mind.
Just a thought Toby - I came out of the doctors, sat in my car, went crazy and cried and shook my fists when I was first told - it was like the scene from only fools and horses when they won their millions to any passer by I am sure.
However, after a good sob - I decided there was only one way to deal with it and that was to be very positive. I went straight to my gym that night and have been every day since. I have met loads of new friends. I also have tried food I really wouldn't have bothered trying before and now eat 3 meals that each have an amount of carb in them, lots of salad or veg, and some protein. I always try and make them as interesting as possible otherwise I would get bored. Then only fruit and diet drinks after that. Going to the gym stops me thinking about food. So by being positive and as you say take one day at a time, we can turn this around into making us feel better than we have in a long time.
As for advice, totally true what has already been said. Lots of confusing advice and comments such as i am sure you can have a small slice of cake. Ignore them! Listen to your new friends on here and rant and vent as much as you like Toby and together we will get there.
Sorry if I sound like I am preaching.
All the best to you.