Do not trust media and headlines (Fear. Uncertainty.Doubt. & Fear Of Missing Out) — Media is uneducated in the space and as you’ve seen has caused people to panic. Do not trust random links, unfamiliar emails, and social accounts on any platforms — There are several scams. Protect your accounts, back-up all of your private keys, and get a hardware/cold storage wallet like Trezor or a USB. (I recommend a cold storage wallet)
If you want a more structured approach to learning this material, there are a few high-quality courses out there (and a lot of low-quality ones). I’ve already linked to a couple lectures from the Princeton Coursera Course (the videos are on Youtube as well), and the UC Berkeley Decal. I’ve also heard good things about Consensys Academy for folks who want to get into smart contract development.