OK first off take a deep breath and let it out slowly, tell yourself you can do this and you will do this for your health and family
Go to Walmart and get their Relion meter/test strips inexpensive. A meter is used to give you an idea how you are doing, how meds are handling, etc. Every meter will give a different reading, some are better than others. They even have their own brand of blood pressure machines. I use sunbeam brand, have had it for years and does fairly well compared to doctor's
Check to see if you have any clinics near you that will provide the meds needed, either free (some drug stores now give the oral diabetes meds free with presecriptions) or at a lower price.
Now as far as a diet, you can eat pretty much everything healthy, of course and with some changes. No fried but baked broiled, veggies of course, no white potatoes, but try sweet potatoes, no pasta but see if you have dreamfield brand in your stores. No white rice, no white breads but try the light versions, multi grain.
The foods that are considered a no no have starches which tend to hold the numbers up higher and longer, same with the fried greasy foods.
PORTION CONTROL is very important, learn to read the labels and watch carbohydrates (they are sugars, just complex) most of us can handle 35-45 carbs a meal, around 15-20 a snack. DO NOT skip meals, your body will react negatively with not getting food on a regular basis, it can create a rise in your numbers.
Do not fall pry to fad diets, "miracle cures", etc, at this time there is no cure only control. If there is such a thing as a cure, then logically you would think you could go back to eating all the wrong things again and not have a problem, but it doesn't work that way.
Exercise - get outside and walk, start out slowly it helps your body to help control the numbers, gives you a better frame of mind and just plain healthy - any kind of exercise of course helps but do start out slow.
(an A1C is the average of 3 months of readings, your blood actually stores the sugars in the blood) Your goal is to maintain 140 2 hours after a meal and under 100 for morning fasting, which is hard for us with diabetes since there is something called the dawn effect - in simple terms - your pancreas and liver had a party overnight and didn't invite you - body thinks it is getting low on fuel (carbs)so the liver produces more and the pancreas creates the insulin needed to process, but with diabetes they no longer work efficiently together) Even after 18 years I still get higher numbers in the morning, tho not as high or as many as I use to. Try not to get under 70 since this is considered low and some of us have gone even lower which is not a good thing, but don't stress just grab a light snack.
You will learn to read your body in time, to know highs or lows and how to handle.
Talk to us, read our posts here, and the information found, ask questions, keep asking as long as you need to be able to understand.
You can do this, we all have been there, some still are, and even after all my years, I still hit that wall at times, but I don't allow it to rent my mind without paying rent LOL (humor helps also)