What are your financial goals for 10, 15, or 20 or more years down the line, and how do you plan on getting there? What is your level of risk tolerance, and what sort of investment approach will you take (value investing, dividend investing, or some combination of multiple strategies)? As you consciously outline your financial goals and the type of investor you want to be, you can experience success as a disciplined investor in the long run and stay on track with your plans.
If you’re going to invest in the stock market, it’s a good idea to enlist the help of a licensed financial adviser. The right adviser can help you to better understand your financial needs as well as your goals and objectives. They can help you to plan for the future and make sure that the investments you choose will help you to reach your long-term goals.
If there are any lessons to be learned from the American sub-prime mortgage crisis, the 2008 stock market crash (information here) and Wall Street bailout that followed - and there are lots of lessons - it is that borrowed money can be very dangerous in investments, even when it is being handled professionally. The failure of LTCM, Bear Stearns, Lehman Brothers, Northern Rock and many others shows just how precarious a business model can be with too much gearing.
Remember that free stock picks usually exist because of the vested interests of the company or the promoter. There are some exceptions, such as in the case of top book publishers, like John Wiley & Sons, who produce works like, "Penny Stocks for Dummies." Their exhaustive vetting process alone is usually thorough enough to provide you with some serious confidence in who they choose.