This is a good time to go out cheap on Luna, yea it has lots of problems presently but buying at 0.77$ and selling at 5$ today is great return, not only that, just because this project has a big issue now doesn't mean its the end, this is not a financial advice but taking risk with just 10$ - 20$ might worth it.
Luna's lowest point today is $0.5 so even when you buy at $5, you still suffer a 90% loss. No trader has a ball to hold a position like that. I was about to take a long position on Luna but then my instinct told me to stop. So I quit. On the other side, there might be those who are extremely lucky to buy Luna for around $0.5. They might x10 their portfolio right now, in the middle of the crisis.
In my opinion, it is hard for Luna to get back to normal since it loses more than 99.5% of its ATH. It is like a nightmare to all investors