A good idea is to write down questions and then ask them to youtube and google. You can even add "hive.blog" into the google search to see if someone wrote about it here.

Understanding Bitcoin and Ethereum and what makes them different is the most fundamental. Most other things are a variation used differently, some exceptions though. Then you can learn "what is proof of work, proof of stake, Delegated proof of stake" "what is a smart contract?" I learned the use case for the top 100 coins on coinmarketcap and it helped a lot. Now half of them are gone but it helped me build a foundation and learn a lot of important people in the space through the videos i watched.