Drawdowns in trading & investing are normal. If you can't stomach these, then you are either sizing too big or simply didn't think about your trade or investment enough before. The first thing I always say when people ask me whether they should invest into crypto is: "Would you be okay with it potentially losing 80%+ of its value in no time?". That usually makes them think twice about their decision and prepares for what happens every few years on pretty much every coin. Luckily, $BTC has now become mature enough where its drawdowns are getting smaller during the bear markets, but 50%+ drawdowns are still pretty regular over the years.