I certainly did, not only did I invested into things that went low and crashed so hard that they never recovered, but I also lost money in crypto companies as well, from cloud mining companies to exchanges to gambling to many other places.

So, I have to say that I learned my lessons the hard way, and now I am making a good profit, even though the price dropped a lot, my averages are still quite low and I am feeling fine about it. This required me to lose so much money, and because I didn't hold it, I ended up missing out on so much money as well. It requires a bit of time to become like this, I am sure eventually everyone will reach this level.