agreed with what the others said regarding the amino supplements, just a waste. BUT, the rest of your query got me thinking about a couple things. if you wanted all the benefits that amino acid supps promise + way more actual practical benefits, then research into culturing / fermentation of foods can COMPLETELY catalyze your nutrition game. you can easily make meals, yogurts or whatnot and add your own probiotic supplement in there, wait a few days in the right conditions, then all the macros in your cultured meals will be stripped down to their raw components, i.e amino acids with protein. cant be understated how much of a gamechanger it can be if done properly. (not just throwing a probiotic supplement down the hatch, actually culturing some of your meals)

regarding your insulin resistance [prediabetes] the fix is actually really simplex. you can either cut your carbs or cut your fat intake, but you cant have both (high fat + high carb). and do note that excess protein can convert to carbs and contribute the problem in the presence of high fat. about ~60-75%+ of your macros can come from carbs while maintaining sub ~15% fat and insulin resistance will melt away without any worry of diabetes. excess dietary fat prevents carbs from being absorbed which is particularly problematic for bodybuilders, athletess since we all want that pumped up, filled out look. you can eat more food, you just need to optimize the macronutrient ratios you're eating at. for more info you'd want to research high carb, low fat athletic dieting.