La realidad de los Robos Forex:

There are plenty of EA's that will work for a week, month, or slightly longer if you are lucky, but then for the vast majority of EA's failure seems inevitable. My humble view on this is that it is because of the massive assumptions built into the "EA process" (see more below). Automated trading simply lacks the discretionary and learning ability of the human brain - an no this cannot be programmed. For example, last night I took a trade that met my rules - however, something unusual had occured 2 days before in a futures contract (showing signs of an "unsettled" market which caused me to intervene in this trade and plan to exit the trade earlier if the desired profit was not reached quickly). So I exited with a neutral outcome, but had I held the trade (as per the plan) I would have had a loss, slightly larger than average. Just a sample of one, and I do not intervene in such a way too often, but the point is clear - an EA would not have had the capability to do that.

So.. under some circumstances, automating part of a trading method may be useful, for a highly experienced and knowledgeable trader, who is already consistently profitable, but this is a rookie forum, so the advice for rookies is to stay way from EA's - they will eventually shaft you, and aside from loosing money, you will also loose the opportunity to gain the knowledge and experience that is required for sustainable trading - no fixed EA can ever give you that sustainability.