my old man does not believe in stocks

To be honest, my old man does not believe in stocks but I'm here to prove to him otherwise and he is giving his support for me to try it out. His #1 rule (and of course, the most important point) - only invest what you can afford to lose. This follows with my #2, do your due diligence before you throw in your money! And lastly, #3 another saying goes, High Risk = High Returns!