I thought I'd bot in to tell you "Nice thought but my diary is full."
Good points about forex. And the other negative is that the 'little punters' are up against the professional corporate traders who work in microseconds with massive chunks of money.
The weight of their money suddenly shifts the graph, and changes your good bet into a dead cert loser.
Trading...betting... Both wings of the same bird, really.
No 100% certainties exist -- apart from death and taxes, as the saying has it.