My vote for the stock that ruined my peace goes to $Rocket Lab USA, Inc.(RKLB)$ ‌.  It started off shooting for the moon but then became a wild Rollercoaster.

$Rocket Lab USA, Inc.(RKLB)$ POV. Despite Ricket Lab's successes both around the negotiating table and on the launch pad their share price has been dropping all month. This has nothing to do with what's happening with the company but instead is people pulling out their investment following a month of insanly strong gains. With future plans set such as Neutron and a string of international backers are investors jumping the gun?

$UnitedHealth(UNH)$  one to keep an eye on.