I have quite a lot of commercial EAs and most of the commercial EAs are applying Martingale and Grid concept or the Martingale+Grid combination.
I found that if I am using the default settings, eventually all of them will fail.

The easy way to take advantage of these failed systems is just reversing their trades.
So I just created a few demo accounts and run these EAs with the more dangerous settings to make them to burst faster.

And I am using a trade copier to reverse with some time filtering conditions.

My automated trading is just acting like a b-book broker 

Sorry, I am newbie, I am using pepperstone demo account. Is anyone dont mind to shed some light to me? How to interpret the forex equity value and changing currency value? Why is my equity value keep on changing despite I hold only USD? Thank you for all sifu, terima kasih.

Edited: Sorry guys, I managed to get the answer already, however the post is unable to be removed.  Thank you.

Do you mean the broker account register? I just browse some broker comparison website and clicked the link through the web & register my acc.