I am very shocked the news of the friend. Personally, I lost a little of my money to invest in Luna. There are many people who lost their money to invest in Luna. Most important that you should not invest full of your money. You invest 25% - 50% of your money that is wise decision as I think.
I agree. No need to rush to invest all your money and wait for the result. Regular investments of amounts that will not cause much damage to the wallet will help you lead a normal life. And of course, you should always be ready to lose some amount. This is a cryptocurrency and it has its own laws. If you are interested in this topic, then you probably know everything without me.