Weight loss PCOS

I have pcos and have never been able to lose weight easily. I've done so many diets, eating plans, lifestyle changes, exercise routines. I'm just done. I can't seem to lose the weight. I keep falling off the wagon. I feel like I don't eat a lot and I eat healthy. But I do find everything I do unsustainable and I end up binge eating after doing well. I'm just fed up. I don't know where the next step to turn is. I'm not a candidate for IVF due to being obese so I need to get my weight down, but I just feel like I'm at such a loss. My motivation has gone. And nothing really works long-term. I keep failing and letting myself down. I know it's ok to have bad days sometimes, but not if they keep you from losing any weight. Been stuck around a similar sort if weight now for 3 years despite trying hard to shift it! I've done vegan diets, healthy eating, calorie control, loads of the usual diets, exercising. Just fed up. Maybe it's me? Any pcos sufferers out there lose weight and keep it off? How did u do it? Can u post before & after pics? I want to do it the right way but I just don't know how. Feel like giving up...