First Transfer Failed…. What next

This is my first time posting on Reddit but I have spent the last 24 hours reading through stories here and I thought I could reach out for some help. My first transfer failed. I know that it happens but in my mind this was our best shot. I am 31, we transferred our best embryo, 3AA euploid. Prior to this I was on 60 days of suppression meds, lupron and letrozol. Before that I had an hsg,hysteroscope and full endo removal surgery. I feel like I checked all the boxes! And if this was our best, most optimal shot, I'm worried there's no way another transfer will work. Logically this was our best option. Going forward we have other euploid embryos but they aren't as high a grade. We also have some mosaic embryos. But my mind keeps saying, if the best one didn't stick with all the prime conditions, what hope do I have? Am I missing something? I'm feeling so hopeless.