North West is serving Kim Kardashian a big slice of humble pie … keeping it real about the criticism Kim’s Met Gala looks receive — while still encouraging her mom to attend fashion’s biggest night.

In the latest episode of “The Kardashians,” Kim reveals she almost skipped the gala due to a fitting issue with her Chrome Hearts’ black leather dress.

Enter North West … who entered Kim’s room with flowers and a “Good Luck” balloon to boost her spirits.

Kim expresses her anxiety about how people will respond to her dress … but North doesn’t hold back, telling her, “What’s the worst that could happen? People hate on your outfit? They do that every year.”

North insists Kim must go, saying, “You just have to go — that’s it.”

Kim credits her daughter as her “motivating factor” for attending the charity event … and ultimately, her dress was a success after her team decided to alter it by cutting it in half.

North may only be 12 years old, but her advice is wise beyond her years. The bottom line is … haters are going to hate, and sometimes you just have to keep pushing forward.