Someone... anyone? Breastfeeding.

Rianna • Married to my best friend, mommy to Ryker (2.5), soon-to-be mommy to identical twin girls! 💛
Lately I have been so discouraged about nursing. Moms that should know better, even twin mommas! Are saying things like, "Oh, you're going to try and nurse two? GOOD LUCK WITH THAT!"
I mean, really this happens a lot with any subject regarding twins. It's like, I understand this is going to be difficult. I get it. Did you think I thought this was going to be a breeze? 
I know this is going to be hard, I am just trying to be positive. How else am I supposed to get through it? Negative comments are NOT helping. 
How do you guys handle these?