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"In a free-market economy, anyone can make as much money as they want," $4, who has also studied over 1,200 of the world's wealthiest people.
That applies to 20-somethings.
To help you reach the seven-figure mark by 30, we rounded up 11 pieces of advice from people who became millionaires at a young age and people who have studied hundreds of self-made millionaires. We can't guarantee millionaire status, but doing these things won't hurt your odds: