Paper Trading AKA Simulated Trading Platform: Don't Ever Underestimate it!
Paper trading refers to trading with virtual money, you do not use real money. You jot down in your notebook when you bought at what price and why. When you sell, you record in your notebook again why you sold and calculate the profit or loss associated with the trade.
If you cannot make money by paper trading, you can forget about making money in real trading. Always test a new trading idea with paper trading first before using real money. Also start with paper trading after a long period of break, to help you get back in touch with trading.
Although there is very little difference between paper trading and real trading in Emini, real trading is subjected to slippage and psychological factors come into play when you are using real money. Do not underestimate the impact of psychological factors on your trading. After you have a reasonable method and money management techniques, it is the psychological factors which will determine whether you make a profit or loss.
Some traders have created software to paper trade. You push the buttons like you are doing real trading but only virtual money is involved and no real cash is used. The system will record down the time, price, symbol and the position opened or closed. This saves you the trouble of keeping a paper record.