One of the ways I save my Bitcoin is by buying during the deep never looking at it again for over some time. I have learned big from that small mistake of the past 2020-2021.
it seems like everyone feels this way in crypto. I also sold around $3k and a few months later it went up to $20k. so no one really knows what the future will be like . what is certain is that currently bitcoin holders are always profitable if they are never sold. and in the future it is very likely something like this will happen again .