Not always the same strategy will give you the same return in trading, while you may need to make some adjustments to increase your chances of getting profit. In some circumstances, your main trading strategy may still not produce anything and that is why you need to make some adjustments to combine it with other strategies.
The right strategy approach allows traders to get returns, but some other things also need to be considered including the right moment and time in trading. Analysis is also needed regardless of any strategy, so profits do not only depend on the strategy.
A same strategy is applied in different market phases, bullish and bearish, will bring different results like profit vs loss, big profit vs small profit, big loss vs small loss.
This is risk factor of trading in a volatile market that is always unpredictable. A trader can make predictions that sometimes are correct, sometimes are inaccurate. Because of your trading capital safety, you can not bet it with unknown accuracy of your prediction. Trading is addictive with chance of getting profit more quickly than investment and holding but it is more risky.
About timing the market, it is another risk because doing it precisely is very hard.