My heart is broken

The past few days I’ve just been thinking. I just miscarried at 6 weeks. My betas were so good this time. I just don’t understand why I’m having this problem. I never make it past 6 weeks. We’ve tried numerous medications but my body still rejects. I’ve had 6 chemicals in the last 3 years and also 3 miscarriages at 5/6 weeks. My husband and I want a child so bad. I just don’t understand why this keeps happening. It’s an emotional rollercoaster. Every time I see a positive test I’m happy but so so guarded because I always lose them. And in turn it makes me so sad and upset when someone I know gets pregnant. It should be such a joyous and happy time for them but I feel resentment sometimes. I don’t purposely do it but it hurts so bad. It’s only been about 2 days since the miscarriage but I’m not holding it together good this time. I know my poor husband is broken inside to. He is putting on a brave face but I know it bothers him. I do have pcos so I know it’s going to be more difficult... but I didn’t think it would be losing my babies every single time. Does anyone have any advice? How did you cope with the loss?