is it bad luck to take christmas tree down

No, it is not bad luck to take down your Christmas tree! It's actually quite common for people to take down their Christmas trees after the holiday season, as they often become a bit of a fire hazard once the lights have been left on for an extended period of time. Taking down your Christmas tree is also a good way to make room for other decorations or to prepare for other holidays, such as Valentine's Day or Easter. So go ahead and take down your Christmas tree if you're ready to do so!