I remember when I was in that position. I still celebrated the milestone, knowing very well that is was probably not going to last. You achieved something big, be proud of yourself! If your net worth regresses passed an important milestone, just remember that a bit of geo arbitrage is probably all it takes to get it back. In my case, I know that moving back to Canada (I was in the US), was all it would take to resurrect the milestone. I also had two levels of celebration: crossing the milestone, and maintaining it for three months.
Congrats, everyone! If you made it that far, you have what it takes to get back there after some small market fluctuation.