Two things seem to work well for women with PCOS - reducing carbohydrate to a level where insulin is stabilized and no longer elevated and interfering with your hormones, and being somewhat active to further boost insulin sensitivity with the dietary modifications.

It's important to find a diet you can live with and that you're responsive to metabolically.....some find dropping carbs to below 100g works for them - others need to restrict carbohydrates significantly, below 30g or 20g or sometimes even 10g - so it helps to be open to different ideas about what your particular situation may require to allow your metabolism to heal and things to turn around - which does take some time too.