@Diabetesnewbie Don't Panic Mr Mainwaring!!
Having T2 is NOT all about having eaten too much and that you've brought it all on yourself because of that. There are a load of other factors at play including stress and lack of sleep so don't assume that you will be expected to go on a strict diet.
Calm down, because getting stressed about it will not be helping!
I'm just under the T2 threshold and keeping a lid on it, and these are three of the easiest things that will help you straight away.
1 - Go to bed at a reasonable time.
2 - Get some fresh air and go for a 5-minute walk round the block every day, rain or shine.
3 - Swap one spoonful or the equivalent of carbs (rice, potatoes, pasta, bread etc) for the same volume of vegetables or salad, eg instead of three roast potatoes with dinner, have two and increase veg by the same amount, or more spoon of Bol and one less of Spag.
A couple of other things - don't skip meals, don't switch to diet drinks thinking it will help (it won't), and if you have any low GI recipe books, have a look in them.