Welcome,
@Scotfalconer. I'm sure others will be along in due course, but to start off, how did you come to be diagnosed? Did your surgery give you any info, or tell you what you blood glucose reading is?
A good start is to cut out or reduce starchy carbs like bread, potatoes, pasta and rice. Replace with more green leafy veg, eggs, cheese, good quality meat (unless you're vegetarian); start or continue with regular exercise; lose some weight if necessary. It's also good to get yourself a meter (most surgeries don't supply them) and test your blood sugar before a meal, and two hours after starting to eat. This way you can get a handle on which foods spike you and which don't.
A useful and cheap meter is the SD Codefree from Amazon or Home Health. I haven't got the link to hand but Home Health take off the VAT if you say you're diabetic.
Please ask any questions you like, give us a bit more info, and we'd be pleased to help. You may find yourself fitter and healthier than before diagnosis
🙂