I don't know how many times I have read that your cervix can either dilate from being closed very fast (hours) or it can occur over a longer period (days). I know it's hard not to feel like a failure but you are definitely not!
You are doing such a wonderful job that bub doesn't want to come, she is just too comfy

Lots of Labour vibes and like Kelly said get some Evening Primrose oil and insert next to your cervix to help ripen it up.

Good luck