I just bought some Ethereum, now what?

Relatively new to crypto as a whole, and I decided the best way to learn was to invest a small amount that I don't mind losing. I bought some Ethereum and Bitcoin, and was just wondering what to do now. Do I move the coins to a wallet? Do I leave them on my exchange platform (digital surge) until I sell? Do I move them somewhere to stale them? I am planning to hold for a little while btw and any links to threads already discussing this would be greatly appreciated!