Em, you need lots of love and support right now. I hope you have people at home with you helping you out
Wednesday must seem like a long way away right now. Are there any other LCs you could try to get in sooner with? Have you tried calling the helpline at all - counsellors are always happy to just talk you through how things are and give you support.
Did anybody at the hospital check your baby for tongue tie or other physiological problems that might be affecting his ability to latch?