I was 16 when I started reselling online. A few months later, my garage was a warehouse and I was making $25,000 a month.

Courtesy of Ethan Alexander Ethan Alexander was a high school sophomore when he started reselling goods on Amazon. He did $125,000 in sales last year, before the business became overwhelming. He's invested much of the money and plans to use what he learned from the business. This as-told-to essay is based on a conversation with Ethan Alexander . It has been edited for length and clarity . Each year, I get a $500 gift from an investment account that my great-grandfather set up for all of his great-grandkids. My gramps — Jack Davis — owned his own company and left a legacy of entrepreneurship in our family. I get the money on his birthday, May 9th. In 2025, my sophomore year of high school, I came across a video on Instagram about making a profit by reselling items online shortly after I received Gramp's gift.