Hi bmurray74!
Firstly, take a deep breath. Go for a walk. Try to relax.
Now, you are clearly not coping very well with your diabetes at the moment and it is overwhelming you. We all go through the 'it's not fair, why me?' phase. You will get the hang of this and you will cope. It is a life-long condition and you need to come to terms with it gradually. It won't happen overnight. I expect your wife is at her wit's end with you right now. A diabetes diagnosis affects not only the person with the condition but those close to them as well. It is a lot to cope with. Give yourself and your wife a break.
Right, your medication. You must take your medication. Metformin helps your cells to use the insulin you produce. As has been said, there is a slow-release form and you might find that kinder to your stomach. Gliclazide makes your pancreas produce more insulin - because of this, you must eat if you are taking Gliclazide or it can make your blood glucose too low. Give the mediaction a chance. If it does not work for you and your situation does not improve, go back to your doctor. There are other drugs they can try. Don't give up!
Food. You must eat. Starving is not a long-term strategy and will make you ill. Try to avoid refined sugar and drastically reduce starchy carbs (cereal, bread, rice, pasta, potato). These are the foods that increase your blood glucose the most. Brown is usually better than white for Type 2s, but they are all pretty bad. Be aware that with Gliclazide lowering your blood glucose, reducing the starchy carb might make your blood glucose go too low, so test frequently. Have a portion of protein (e.g. chicken, fish, red meat) and fill your plate with salad or vegetables (broccoli, cabbage, cauliflower, green beans are all good). Some vegetables are best kept to smaller quantities (e.g. peas, carrots and many of the root vegetables), but they are still preferable to potatoes! Treat yourself to a breakfast of bacon and eggs - it will do very little to your blood glucose. In time, you will learn more foods you can eat and your current panic over food will subside.
Take care and keep in touch
Smidge