One thing my friend said to me yesterday - a lot of people see managing their PCOS as a ttc thing, when it is really a whole life thing if you want to be healthy and live longer... so the lifestyle changes are an absolute must!
I agree with your friend 100%. I was doing something about it long before we were TTC. People need to realise that unmanaged insulin resistance can lead to diabetes. Your pancreas just wears itself out.