I'm still sticking to my fourth rule of crypto: "never sell everything", so I have some left.
What are all your other rules of crypto?
I'm glad you asked

I can't really answer it though

Fourth rule just sounds kinda cool.
I've made several related posts:
That's like the first rule of Bitcoin. You break it, you lose it.
As a rule of thumb: if you can do something without a blockchain, you shouldn't use a blockchain.
By now, I'd say these are the first rules of crypto:
- Not your keys, not your coins
- Verify, don't trust
- Be your own bank
- Never sell everything
- HODL
(no idea who's the original creator of most of those rules)
Please add to the list, the order is negotiable.