What is your fasting blood sugar? In other words, nothing to eat or drink except water for 12 hours. Mines been around 115-120 or so. I just fasted this past weekend so I could get my bloodwork done. Find out Friday what my A1C is.
Trust me, I already have some complications with my feet. Your blood sugars are pretty high and you need to take it seriously. Metformin is not insulin. You need to take take regularly. I take it twice daily, as well as an insulin injection once a day, but diet is a must.
WIP was correct above in that you should try and limit your carbs to about 40g per meal. If you real active, you might be able to have a few more. If you're not real active, then you should have a few less.