Every positive-expectancy strategy has losing runs that feel like failure. A system winning four trades in ten will produce five consecutive losses regularly. A trader who switches after each such run experiences only losing streaks, by construction.
The hop usually arrives with a new source: a course, a room, a video. The new method then delivers its own normal losing run, and the cycle repeats with the added cost of never developing skill in anything.
Set the evaluation terms in advance - a minimum number of trades, an expected worst drawdown, and a review date - and change nothing before them. Judging a method requires a sample-size, and the whole point of fixing the terms early is that the decision to quit gets made outside the drawdown. See grit-vs-stubbornness.
Related: grit-vs-stubbornness, sample-size, indicator-shopping, quit-point