My sister and I fought our entire childhood due to our differences. As adults, we are best friends.

• 04/19/2025, 5:25 AM
• businessinsider.com

Courtesy of Rachel Garlinghouse.

I am the oldest child. Like many, I grew up under the expectation that I should be mature, my sister's caretaker. I was classically anxious, organized, and bossy. My belief was that my little sister, who is three years my junior, was both my responsibility and my subordinate.