Normally I would give advise to someone like you that you will never make as a trader and to stop giving people like me all your money, but I doubt you will heed my advise. I was actaully rolling on the floor laughing when I saw your backtest of 68 sample size, I am still laughing about that. I do both very long term trading in commodities and day trading of indexes, currencies and energies. When I backtest for long term trades, I have tic data going back in most markets either to inception as a future or back thirty years, I need sample sizes of min of 3000 or back to inception on some markets for overnite trades. For day trading, I require 3000 plus sample size going back ten years.
You would offer more to your inner self if you didn't do anything for like three years except backtest ideas. For me to make any kind of a change to my methods, I first have to do insane amount fo backtesting first, what looks good over a few days, seldom works out good over a length of data.
But the worst of it all, is that you have a MAJOR EGO problems of needing to be right, so you can't pull the trigger to get out. As timeframe expands for me, my losing % goes up, some years I may lose as must as 80% of my future trades in so so years, but I have learned to hedge all my sells and often times make money in what would have been an outright lose. I been selling short Silver and Gold for awhile, no winning futures trades but hedges have worked out very well.
On a 10k account, many markets you should not even consider to trade, margins say much about the volatilty of a market, and with your size account, I would never trade anything above $1,999 and never risk more than 2.5% the account size, one futures contract to every 10k, you really don't understand how much you could truly lose, had Silver gone up limit for several days and no way for you to get out of your short position, loses could easily been beyond your account size.