I have a very close friend who got interested in Forex trading from his brother in law when he moved out to Texas. He spend over a year doing make believe trades until he felt comfortable and knowledgeable enough to go for the real thing. He started with $3,000, which was probably his life savings at the time and lost all but a couple hundred within a month. He doesn't like to talk about that episode too much anymore.
In my humble opinion, Forex and commodity trading is best left to the professionals. And day trading stocks is right up there in the same league.