It took me about 2 years and over $100K down the drain before I learned to be consistently profitable. But even then, consistent profits these days only average about $2-4K per month my end. Some months, I've been flat. Two years ago, I used to trade over 3 million shares per month. Now, I trade around half a million shares a month. You have to be very selective and highly disciplined in this market to be profitable. If the trading day looks choppy and non-trending, keep your activity light. If it's a strong trending day then put the pedal to the metal and be aggressive but smart.