As others have alluded to, meat isn't really the deal breaker.
It's about making consistently good choices at every meal. Good choices mean cutting down or eliminating foods that directly affect blood sugar. There's really only one food group that affects blood sugar and that's carbohydrates.
So rather than looking at cutting down on meat, look at how you can cut carbs. Instead of steak with chips or mash, do steak with a big green salad. Instead of rice with your curry or chilli, blend up a head of cauliflower and fry that. Instead of mashed potato, have mashed cauliflower. Have omelettes or boiled eggs for breakfast instead of toast or cereal. Instead of crisps as snacks, try jerky, biltong, nuts, seeds, pork scratching or kale chips.
Avoid low fat foods - they're almost always higher in carbohydrates than the 'real' versions and so are actually a less healthy choice.
Google for low-carb recipes. You don't necessarily need to go the whole hog and start stocking on xanthan gum or almond flour or erythritol or the other weirder and more expensive ingredients but there are plenty or recipes out there that use simple ingredients.
Above all, go for a 'low-CARD' diet i.e. Avoid foods that come in packets or are prepared. Make as much as possible from raw ingredients from scratch.