Does anyone else struggle with continuously blaming themselves for their infertility?

We have been trying for two years. In that time I have exercised, I have not exercised. I have taken multivitamins, I have gone through multiple iuis. I have given up drinking, I've allowed myself to drink to de stress. I have tried 'not trying'.

Everything that I read points to lifestyle/psychosocial factors being responsible for infertility. And I can't help but feel like I there's something I'm doing wrong. Sure I gave up drinking for two months, but should it have been longer? I could be eating healthier and losing weight. Have I truly been doing my best?

And the worst part is that I know thinking like this does nothing for stress - which ever tells you is a killer when TTC. But I can't help it. Anyone else? How do you cope?