TO have a good trading results, you should follow a successful Forex trader. Check the trading performance of the trader you're going to follow. But keep in mind, that the result varies how you handle your account. The movement usually connected to the current economic condition of the pairs you've have traded.

I don't think this kind of service is very profitable because not all trading styles works for the 2nd time. All I can say is to follow your own analysis and never rely your decisions to other method.

Use the method properly. Apply all your skills accordingly and never close your trade without thorough analysis.

You are going to earn a lot of profits if the deals you copied are managed thoroughly. But you must remember, that not all deals are accurate just like others.