When there are higher low points along with stable high points, this suggests to traders that it is undergoing a period of consolidation. Consolidation usually takes place before a major price swing (which in this case, would be negative). Learning about triangle trading and other geometric trading strategies will make you a much better swing trader.
In addition to knowledge of basic trading procedures, day traders need to keep up on the latest stock market news and events that affect stocks—the Fed's interest rate plans, the economic outlook, etc. So do your homework. Make a wish list of stocks you'd like to trade and keep yourself informed about the selected companies and general markets. Scan business news and visit reliable financial websites.