So he is fundamentally an investor and not a trader?Money is not made in day trading on price fluctuations.
Adopt a buy-and-hold strategy in a bull market and sell when it loses momentum.
Study the fundamentals of a company, the market and the economy. Livermore separated successful investors from unsuccessful investors by the level of effort they put into investing
Investors who focus on the short term eventually lose their capital.
Jessie Livermore style stock trading stopped working with the introduction of the SEC in 1934. By 1940 he had gone bust trading commodities and shot himself.