"Dweck has found that socialization and beliefs about learning ability are developed at early ages. “Mother’s praise to their babies, one to three years of age, predicts that child’s mindset and desire for challenge five years later,” Dweck said. “It doesn’t mean it is set in stone, but it means that kind of value system — what you’re praising, what you say is important — it’s sinking in. And the kids who are getting this process praise, strategy and taking on hard things and sticking to them, those are the kids who want the challenge.”
This is a great article at mind shift on how praising, despite our best intentions can hold kids back.