I'm sure he meant the above and that he was writing the date in the european style, which I'm also not used to.

You sound like you might have more invested in it than you can afford to lose if these price swings are driving you crazy.  Maybe you should reevaluate how much bitcoin you own so you can keep your sanity, because this past week hasn't been any more crazy than a lot of other times in its history.  Plus, this kind of volatility is going to be a part of bitcoin and altcoins for the foreseeable future.

I wasn't into bitcoin in the early days, but by looking at the chart I can see that those were probably the most insane times imaginable, right up until Mt. Gox crashed.  And I do vividly remember 2017 and how wild the market was then.  It was going up, so everyone was euphoric but it can also go the other way too, and just as fast.