Welcome to Steemit juliamulcahy. Let me know if you got any questions about Steem or anything related to it! The official FAQ can be found here and has A LOT of information https://steemit.com/faq.html - Also remember, Steemit is just ONE of the sites built that uses Steem the blockchain. We also have DTube - our very own Youtube, DSound for Soundcloud and Steepshot if you prefer Instagram like experience. I'd also like to mention ChainBB - forums, Busy - Steemit with more modern look basically, DMania for memes and Dlive for streaming just like in Twitch! You can also earn Steem by gaming now! Search for Steemgar if that's more your thing. Welcome to the blockchain! :)
Thank you @janne. There's so much more to steemit than I realised. It will probably take me a little while to check it all out. I think I'm at the beginning of an exciting journey. Bit by bit, I will try out each area, maybe even the gaming, but that is likely to be some way down the rabbit hole.