There are a lot of robots or EAs in the market. It helps you to buy and sell trade according to your instruction. It is better if you cannot control your emotion. EA is emotionless. It will better to trade with Ea without making an emotional mistake. Not all EA is good. Test into demo account first before buy or building one. Some broker platform doesn’t support certain EA. But Eurotrader provides mt4 and mt5 platform which support almost all EA in the market.