They didn't succeed for several reasons. First, none of them did the basics, the grunt work. Checking first to ascertain whether or not this business was even a viable one in their area. If it was, checking out the competition, making up a business plan, a mission statement. Setting up goals for themselves for daily, weekly, monthly, short and long term. Setting up a publicity campaign, working with the different media, setting up a marketing plan, networking.
Another somewhat unique characteristic of the FOREX money market is the variance of its participants. Investors find a number of reasons for entering the market, some as longer term hedge investors, while others utilize massive credit lines to seek large short term gains. Interestingly, unlike blue-chip stocks, which are usually most attractive only to the long term investor, the combination of rather constant but small daily fluctuations in currency prices, create an environment which attracts investors with a broad range of strategies.
Once you start, you will be addicted. Watching your funds grow is incredibly addictive and will inspire you to invest a larger percentage as your income rises. If you have debt, put a portion of this percentage towards the debt and a portion into your mutual fund, so you have something positive to reinforce your automatic deductions.