BOOM! Extremely sound advice! Great post! Thank you!!
This is a marathon, not a sprint.
Following on that: learn how to secure your money. That can't hurt and will pay off. Get comfortable with the security measures you have.
Brain wallets, paper wallets - extremely valuable tools you have, but know their weaknesses (insecure computers, insecure code, weak passwords). Learn how to use a linux live CD. How to create and manage cold storage wallets.
Even if bitcoin dies, same principles will apply to all cryptographically protected currencies.
Yep, good one as well. Also, understand how change is sent back to you on a new address and when that makes your old backups obsolete (and when it doesn't).