Lexi Thompson is one of the more popular players on the LPGA Tour and she decided on Tuesday this will be her last year playing a full schedule.

Thompson chose the U.S. Women's Open—the major she first played when she was 12-years-old — to announce that she will step away at the end of the year. The 29-year-old American became emotional while talking about the amount of work no one sees and the loneliness that comes with it.

Thompson said she has contemplated semi-retirement over the last few years and cited mental health as one of the factors that contributed to her decision.

Thompson is playing her 18th U.S. Women's Open before turning 30. She won the first of her 15 LPGA title at age 16 and is known as much for the majors she lost as the one she captured at the Kraft Nabisco Championship in 2014 when she was 19.