"It only gets harder from here."Or,
"I remember the days when I only..."Mother Lindsey Carlson writes wisely about "The Phrase That Enslaves Moms In Every Season." It's applicable to dads as well. Please read it and then cut "Just wait," with all it's condescending, "That's nothing!" unhelpfulness, from your parent-to-parent conversations. Or, just wait...maybe you should read to the end of her post and find out how we can redefine and reuse "just wait" in a way to give grace to those who hear.