I can relate. Heaps of people told me to take the drugs, to formula feed, to have an episiotomy etc etc. And the were a couple of parenting issues where people told me I just didn't understand what it would be like and I would see how wrong I was. I felt like people thought I was so naive. But as someone said, they were just validating their own experiences.

I am happy to say I stuck to my guns, I got the birth I wanted, I breastfeed successfully and I DID know what I was talking about when it came to those parenting issues and we've done exactly what we said we would.

You are prepared. Don't doubt that. (I did).

ETA - I should say that there are times when you can't have the birth you wanted, but in my case there was nothing to stop me but my own wimpyness - so sticking to my guns was all I needed. Sometimes guns and stickiness aren't enough because of external forces.