Now shooting Insulin 4-5 times every day, in a vicious circle.
If you have a working pancreas and need to take insulin, I suggest eating less of the foods, that raise your glucose levels in the first place. You don't have to go extreme, you don't have to eat foods that make you feel sick. You can cook tasty satiating foods, with just less of rice, pasta, potatoes, and such things.
You can make adjustments in steps you feel comfortable with.