we can only calculate in each month how many losses and how many get a profit. Generate a consistent profit in trading should be by collecting in montly and not in every trade, and to generate consistent profits, we should learn more about trading plans and money management and risk.
To limit the loss of the first thing you have to choose a good commercial exchange to limit the attack and steal property. When investing, what you need to do is learn a lot of knowledge about this market, learn more about technical analysis to be able to identify the point of purchase and sale reasonable, divide the capital into several parts investing and reducing the risk of unfortunate market volatility.