Individuals can achieve financial success through investing in stocks by adopting a long-term buy and hold strategy. This involves purchasing shares in a company and holding onto them for an extended period, even when the stock market experiences downturns. The power of compounding allows investors to earn returns on their total profit from capital gains and dividends, resulting in a substantial increase in their investment over time. Consistent investing, even in small amounts, can also help individuals accumulate wealth in the stock market. It's important to note that becoming rich through investing in stocks takes patience and a long-term perspective, as it can take nearly 12 years to become a millionaire through buy and hold investing in the S&P 500. Additionally, spending below one's means and eliminating high-interest debt can also help individuals achieve financial success.