The candle on the left with the green arrow marks the point where Bitcoin went into its final bubble, the top step of the ladder. The subsequent green bar confirmed it by opening above its close and closing above its open.
I'm not going to say that area has to or will hold. At this point picking bottoms seems like a fool's errand. I will say if that zone is violated we aren't going to just prick the latest bubble, we're going to prick multiples, and the next stop would likely be a minimum of 2k further down.
Keeping an eye on the price zone created by that red bar may be a good way to measure how things are unfolding or unraveling as the case may be.