What are some of your biggest Crypto investment regrets?

Personally:

• Learning about Crypto during a massive bullrun. The excitement, and definitely greed, caused me to buy plenty of shitcoins without proper knowledge. Turned into a very expansive mistake during the following crash.
• Taking financial advice from random shills/youtubers & not doing proper research.
• Not learning about staking sooner.
• Diversifying my Portfolio too much. Instead of picking 4-5 well established projects, I spread my money too thin and took too many risks will lesser known projects.
• LUNA. This one goes without saying...

What are some of yours?