The "most underrated skill" for success, as demonstrated by a college dropout on track to earn $500,000 this year.

Despite being one semester away from obtaining a bachelor's degree, Moses Lin states that he has no intention of returning to college.

In 2014, after his enlistment in the U.S. Marine Corps ended in 2011, Lin enrolled at Vanguard University of Southern California.

"He states that he knew that if he followed a traditional college path, he would end up with hundreds of thousands in debt, but he didn't want to begin his life that way."

In his senior year of college in 2017, Lin abandoned his studies to pursue a full-time career in music.

Lin, 31, is on track to earn $500,000 this year after years of building his own business as a traveling wedding guitarist and investing in real estate.

Lin says much of his success comes down to honing one important skill.

"Lin believes that learning how to learn is the most undervalued skill, as she has discovered through her experience as an entrepreneur, which has taught her video editing, CSS coding, and various other random talents."

He states that he is proficient in teaching himself how to tackle almost any creative task and locating the necessary information or experts to solve it.

Lin learned everything about building his business as a wedding guitarist on his own. He charges between $6,000 and $15,000 for gigs, and couples cover travel expenses for him and his team, which includes a sound engineer and production assistant.

He has recently started coaching musicians to grow their businesses and charges $1,500 per hour-long session. He has mentored clients in Ireland, Singapore, Dubai, and across the U.S.

Lin's success is attributed to setting ambitious goals and sharing them with others.

Two years ago, CNBC Make It interviewed him and he aimed to have a net worth of $1 million by the time he turned 30. He achieved this goal just a few weeks before his 31st birthday.

He says that he has always been a fan of setting a wild goal, sharing it with others, and then working towards achieving it.

Involving others in your goal-setting fosters accountability and helps connect with individuals who can assist in achieving those goals.

"Setting a goal is crucial because without one, you're merely going through the motions," Lin emphasizes. "You'll reflect on your progress later and realize that you have no benchmark to evaluate your success."

Lin owns eight income properties in Little Rock, Arkansas, and earns $2,500 in monthly rent. While this income is not sufficient to sustain his lifestyle, his ultimate objective with real estate is to accumulate wealth over time.

He says that he earns more than he spends, his net worth has increased with his investments, and he is content with his current lifestyle.

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