My cryptofolio is down 1/3+

I officially understand the principle of not reacting emotionally. How have others kept their wits during downswings like this?
I have seen it all happen and I have this in my room whenever the fear and bear seasons set in, not only I'm holding I'm also buying this is a huge opportunity opened up, there is no bad news coming in fact some big names and big companies are holding to their share at this window season, they are keeping their billion-dollar shares
MicroStrategy CEO won’t sell $5B BTC stash despite crypto winter