I am new to crypto and everything I have done has been strictly through Coinbase. I don't have a key or anything like that.

Is my crypto safe?

What can I do to make it safer?

Everyone talks about keys, what exactly is a key. Where can I purchase one and how does it work.

Thanks and good luck to everyone. I am already up about 22 percent on my investment and extremely happy. I do feel that BTC will go to the moon.