Help with a very simple EA

 

I am very new to MT4 and would be very gratefull if someone can assist me with a simple ea.

Entry Buy = RSI > 55, EMA5 > EMA12

Entry Sell = RSI < 45, EMA5 < EMA12

Exit/Stop Loss for both = when RSI crosses 50 in the opposite direction of the trade.

Trailing Stop = Adjustable

Only one open order at a time.

Thank you very much.

Timo