Certainly! Here's a refined version: Hello, I'm Cheney, a 28-year-old first-year nursing student! I grew up during the one-child policy era, but despite that, I've spent a lot of time caring for my cousins and friends' children. I'm excited to connect with you!
I've been taking care of my friend's child, who is 18 months old, and I'm comfortable caring for children of any age.