Honestly, the best thing I did for my PCOS was to go grain free/sugar free. It's tough, but my body thrived on it.
If you can't manage that extreme, then you need to mitigate the effect of sugars on your insulin levels. Any time you eat grains, sugar, fruit, etc., you need to pair it with fat and/or protein. If you want an apple, eat it with cheese or peanut butter. If you want a piece of toast, have it with butter and an egg.
As for thoughts on what to eat... make breakfasts ahead of time if you have difficulty getting breakfast in. It's crucial to maintain your insulin levels. Be sure it's protein heavy... eggs are great. I used to bake on the weekend for the week, making either egg custards or egg muffins to last the week.
Meal plan. Until you get the hang of it, plan out every meal and snack in advance. Veggies and hummus is a great snack, high in protein and fat, assuming you can tolerate the legumes. A handful of cheese cubes is also good, as are hard cooked eggs - either straight or deviled.
Exercise can also really help with the IR - even just walking regularly.
I also feel that de-stressing and acupuncture both played a role in my conceiving my son.
