I recommend Euro Scalper put it on EURUSD Timeframe 1min
and it will do everything for you all you have to do is to leave MT4 on all the time very low risk $10 on cent account is enough for you to start with
or just try it on demo
there are some few good FREE EAs on mql5 market too I recommend Dark Venus, Dark Mimas and Wall Street Original
however there are possibility of huge loses if youre not careful when using these bot