Which insulin are you taking? Ideally, in your case you need to start with a basal insulin at night followed by rapid acting insulin 1/2 hour before each large meal. Also, you need to be takin metformin 100 mg twice daily.
your levels seem very high. Although I am not used to your units.
You may need to work very closely with your doctor and you may need a fast acting insulin before meals and/or further adjustment of your basal insulin.
Portion control, carbohydrate counting, and exercise will all help.
However with such high levels I think you need to be talking to your doctor and asking to be referreed to a diabetes educator.
Read up all you can about diabetes and start applying it. With such high levels your risk of complications is very high.