36 years old first IUI failed

My partner and I have just been through our first <a href="https://glowing.com/glow-fertility-program">IUI</a>. It was a lot of going back and forth to the clinic for scans, Ovitrelle injection, procedure. Although it was painful it was fairly easy, but we put a lot of emotional energy into this. After my partner came off some medication he was taking everything seemed to improve. The tests done on me said everything was good. We did our test today and it was a BFN. I actually don’t know what to do now as I feel this huge sense of loss and failure and can’t stop crying. I can’t even speak to my DH right now. I’m just wondering if actually I’ve left this all too late although we have been trying for a year and a half. Any advice?