Don't bother buying anything any more from the internet. It is all available for free somewhere if not just work on trading by yourself without searching for different systems all the time.
Yes you can filter that. It's called sticking with strong discipline and money managment. Also, don't take profits too early when the market is trending. I always set part of my position to take profit at 1:1 then let the last trade run. If you trend a long ways without a reverse signal, it...