Any aspiring trend follower should expect runs of consecutive losing trades to be the norm, interspersed with the occasional small winner and, every once in a while, a big winner.
At some point, most people tend to look for some silver bullet to eliminate at least a chunk of those losing trades, and get the win rate up to 50% or even better.
But the harsh reality is that, throughout history, the most successful trend followers have prospered with a typical win rate of between 30% to 40% - irrespective of timeframe, or the markets traded. That, combined with a method allowing the cutting of losses and the ability to let profits run is from where the positive expectancy of the approach comes.