Hello and welcome. We are a friendly bunch and happy to help with any questions you have.
Your HbA1c is 68 which is quite high, but many have been diagnosed with a much higher result and have successfully reduced it.
I expect you have been medication, which initially is usually Metformin, starting at 500gm a day, building up to 2000gm over a number of weeks. This medication can have side effects (tummy disruption!!) which should settle after a few weeks. If they don't you can ask for the slow release version, particularly if it is affecting your work.
Medication is only part of the story, as it is highly recommended you make lifestyle changes to your eating and exercise habits, plus weight loss if you are overweight. If you look at the Learning Zone - orange tab at the top of the page - this goes into more details.
One dietary change, which many people find helpful, is to reduce your total daily carbs, slowly (too quick can affect the eyes), to less than 130gm a day. I carb count regular food, but others try various other means, like the Keto eating plan, shake based 800 cals a day, 16/8 hours (only eating in an 8 hour window), 5/2 (fasting under 800 cals for 2 days).
Carbs turn into sugars in the body, so it is not just sugar to reduce. This means rice, pasta, potatoes, bread, cereals, processed food, tropical fruit and the usual suspects - cake, biscuits, sweets, pastries, sugary drinks. I suggest you keep a food diary of everything you consume - food, drinks, snacks. Some do it with pen and paper, some have spreadsheets, and some, like me, use an app (cuts out the hard work!). I keep digital scales, a clear glass bowl and plate on my kitchen top so I weigh everything (even now). Only takes a few seconds and no guesstimating and a method of portion control.
Everyone's body is different so it is very much trial and error what works for you. You won't have been given a blood glucose monitor (Type 2 rarely are) but they can be purchased online and I'm sure someone will suggest a suitable one. Testing should be on waking, immediately before eating, 2 hours after first bite. You are aiming towards a starting level of around 4.5 mmol/l - 7mmol/l to a maximum of 8.5mmol/l, with a rise of around 2mmol/l. If you compare your rises with your food diary you will soon work out what affects you and what doesn't. If you don't test, you won't know! I did this religiously at first but 4 years in, I just test for new foods.
Exercise is important - it could just be increasing your walking, cycling, swimming, exercise classes - whatever suits you and your medical needs. I do aquafit 2/3 times a week
I suggest you look at the posts from Leadinglights as they always give excellent advice to new Type 2 diabetics and suggest a dietary website. Also have a look at the Forum Food/carb queries and recipes for ideas from Type 2 posters.
No question is silly as we have all been where you are, and asked them!