For a professonal trader I define it as making money every month (unless you're very long term, then it's not so possible).
LOOK at the action in the markets, almost EVERY day there are great moves, doesn't matter which market. So to be a pro, you have to be able to harvest some of that whilst keeping losses under control. If you're not making money every month then you need to work on your game-plan.
The advantage that most of us have against a massive portfolio is we can be in/out all day long if need be. That's a REAL EDGE so use it...