'Easy fix' and 'no beer of any kind'. I'm trying to process that and filling miserably.
You need to adjust the diet to the risk profile.
Insulin is a fat storage hormone. The first place the fat goes is on the liver, then the blood, a.k.a cholesterol, then the body.
Insulin resistance usually means a fatty liver as well. If left untreated, it turns to sclerosis of the liver, which is irreversible.
You can have insulin resistance, and absolutely normal sugar levels in the blood, so blood sugar is not a test of anything, except to tell you something is already badly broken.
The initial diet change feels drastic, it's purpose is to get the liver back into a healthy state.
Once you achieve that, it's up to you to figure out how to keep it that way.
I'm talking from experience. My fasting insulin used to be 19. Now it's around 5, with no meds.