I agree with Sawzall. Ledger is not a bad place to start but seedsigner is a great place to go to learn more about loads of stuff. It's good because you are in. If you don't have a little to care about, you are on the outside looking in. That's okay too but you'll learn way more and it's pretty cool to get to know different people. Learning might be useful and you can learn as much as you want or don't want to. It's up to you and that's good.