Investing in stock market is like a gamble because you can lose in an instant, but can give you lots of profit if you know how to use it for your benefit. One tip is to buy stocks for a low price and sell it later in a much higher price. You can do this by looking for companies who are experiencing some down time in their business and are expected to recover in some other time. Your stock investments will be low because of their down time, but their stock price will soar high once they recovered from their droop. You can now decide whether to sell your stocks while the price is up, or to wait for a more convenient time. The problem here is how to know which companies can recover from their down time. You might need a broker or analyst for more professional predictions. If you are knowledgeable enough, you can consult the business section of the newspaper and analyze the trends of your target company.
You can also set your profit and loss limit. This will help you to decide on how long you can play with your shares before you get another one. You should not sell your stocks from a certain company if its accumulated price is below your loss limit. Similarly, you can sell your shares and get another one if its price already reached your profit limit. For example, you bought stocks from a company and set profit and loss limits of 1000 and 500 dollars respectively. If the price of your stocks after some time is only $300, you should continue to play the game and if it already reached $1000, you can now sell it and invest in another stock.
Last tip is to seek professional help if needed. You will be charged for their services but can help you in maximizing your earnings and in making the best decision. You can also read books for advices and some of their personal experiences, or you can have a more experienced mentor to guide you along the process.