Newbies don’t have much capital, so their cost ratio is often higher than that of veterans. The small amount of a single transaction and frequent trial and error magnify the cost problem. This article sorts out the four must-pay costs of spreads, handling fees, overnight interest and slippage, and provides practical methods for starting with small positions and low frequency, choosing a period with good liquidity in Europe and the United States to place orders, running through the simulated market first to calculate the cost, and writing the cost into the trading plan to help novices keep their accounts alive longer.