This week alone. Hmmmmmm let me think for a minute.
I don't know if I learned it just because of what happened last week since I'm already doing it for quite some time but, being patient and doing nothing is better than panicking.

I mean for me; I didn't learn anything since I'm already doing it for a long time and things like these are the ones I always see year after year after year. It's just that what happened to FTX was the largest one.

For newbies, maybe they learned a lesson. Things like "Don't put huge money on exchanges." or "Not your keys, not your coins." or whatever it is. You learned to always take profit. That's good for you as long as it's working on your favor. Some investors aren't taking profit for short term unless they are traders and for me, what happened last week is something that will not change my long term strategies.