ivf failed?

any one who had a failed <a href="https://glowing.com/glow-fertility-program">ivf</a> do u know why? i really want to do <a href="https://glowing.com/glow-fertility-program">ivf</a> but iam scared it wont work either like my iuis..idk wat to do idk what to expect can anyone explain how it works why it didnt work for u? thanks for ur time❤