It is not important to win, what is important is to know why you are buying this currency and what is your expected profit percentage from it? And what is your expected loss percentage from it.
☑ Study the trading volumes and analyze them
☑ Study the price movement, is it rising or falling
☑ Analyze the liquidity in the currency, its volumes, type and times
☑ Compare supply and demand and look at the volumes and analyze them
☑ Look at the currency's behavior over two or three months or more
☑ Set a limit for your loss and a limit for your profit, sometimes the currency gives you a profit
But it turns against you and takes it from you!
☑ Always and forever make stopping the loss a priority in your trading