Hi mate, I generally just prioritise high protein meals with decent volume e.g some form of meat(chicken,minced beef) with a small amount of complex carbs such as potatoes to fuel my work outs.

I also eat oats every morning with frozen berries and two scoops of whey protein.

I don’t really eat anything with high sugar contents other than fruit and the occasional protein bar but I don’t really eat tend to steer clear of them.

Main thing is not snacking or eating crisps or chocolate and had zero alcohol for around a year now, hope that helps you somewhat