That's a very sad, heart-breaking - and very honest - post, Harpoon. And I am sincerely very sorry to hear of your experiences - although it is clearly a very common outcome for many retail traders!
But the reason is not because the FX market is so huge or that there are so many big players out there. For one thing, the direction of the positions we take is not controlled or restricted in any way by what others are doing and they are not taking the other side of just our positions and pushing them into minus. Afterall, there are huge numbers of retail trade positions open in both directions so only some of them can be losing at any one time.
Also, forex is only a (kind of) zero sum game if you look at it as a closed environment isolated from the rest of the world. For example export-import companies look for favourable rate levels to buy and sell goods, but they are looking at the rate at the time of their commercial deals, and not speculating on how the rates might develop in the future. Even if the rate were to improve even more after they have dealt it doesn't mean they have "lost" by dealing when they did because their profit is in the mark-up on the goods when they are sold, not from the forex trade.
So the reasons why retail trading does not sometimes work lie somewhere else, and is usually in either the method being used or in the trader themselves - or a mixture of both.
The 3 ducks is a discretionary approach within a set of constraints and prerequisites from various TFs. It therefore offers scope for traders to perform either better or worse at various times. It might therefore be worthwhile analysing your earlier trades to see if you can identify any common features that might be dragging down your performance and which you might be able to turn around.
...but there are always the random chance factors present as well which we have to live with. For example, I left a long EU trade open overnight last night and, since I happened to wake up earlier than usual this morning, I thought I'd take a look how it was doing...........It had been doing fine and then, as I watched it, right before my eyes, it sank down to within a few pips of my entry. Being still half asleep I closed it quick and "rescued" a few pips profit, only to then watch it climb straight back up again to the recent highs! Why did I happen to look at it then when I did? And why did it happen to collapse right at that particular time? I don't know - sometimes stuff just happens!
But don't give up. Analyse and analyse and try something different, maybe. I really hope you get there!