Pick the securities you want to trade and pick the prices you want to either go long or short. Pick the exact prices at which you will enter the trade. Set stop loss levels at that time and stick with them. Hold the stocks until you do get stopped out. Keep accurate records.
Records are crucial.
This process may take a couple of months. But it will be well worth the effort. Fourth, don't even think about day trading until you can trade end of day profitably. Day trading is the hardest type of trading there is. It's incredibly difficult and nerve racking.