Most of the market's revenue is completed in a short period of time. Most of the time it is horizontal. The sideways market is actually the best time to stock up. Normally, at the end of a sideways market, you will always feel that the window period is too short. Short positions are very dangerous because they are really easy to miss. Be able to hold Bitcoin firmly, trade on the left, do not bet on trends, and do not choose timing. Hold the currency firmly.
If I had bought bitcoin at a high price I would basically accumulate more in the sideways market if the price is comparatively low.
This would bring my buying average down. As you said, shorting position would be a bad idea here.
If the sideways market is going unpredictable then it is best to hold and do nothing.
Read the chart and then wait for a breakout to occur and buy more at the breakouts to ride the trend.