Manual or EA does not matter.
Just make sure that, you trade with wise money management, and ready to accept the losses.
I'm using EAs that I make it myself.
One is Eurmas which is trade only at EURUSD and another one is Egymas, which is trade only at EURJPY & GBPJPY.
Both built in with hidden SL.
These EAs were available at MQL5 to be copied.