If you're already having huge capital for investment, maybe you can have that mindset losing what you can afford. Same with the friend of mine who quit his job, unfortunately the money he saved didn't prosper and eventually got burned in trading. Without proper knowledge on cryptocurrency trading, everything turned down and got vanished when trading without any concrete foundation of skills.
It's very sad what happened to your friend. In fact, there are many people out there who experience something like your friend. They initially had large funds for trading, and coincidentally because of the right moment they managed to make a profit from trading, so they decided to quit their jobs. However, after a few months, they experienced a loss that made them run out of money, in the end they regretted their decision. It is very important to know that trading is something that has high risks, it doesn't matter if you have a lot of money or a little, without having good basic knowledge about trading, you can lose everything. Moreover, if you leave your job, the problem will get bigger and make you even more stressed.
So, be wise if you start diving into the world of trading, understand how it works, control your emotions and stick to your work. Because trading does not always produce profits, there are times when we have to hold assets. However, if we still have a job, we can still meet our needs without having to sell cheap assets.