Welcome! If you want to learn about the differences between Steem, Steem Dollars and Steem Power you can check out my video here: https://steemit.com/steemit/@andrarchy/steemit-vlog-4-steemit-101-steem-steem-dollars-and-steem-power. Also my video where I explain how Steemit is really more of an economic system than a social network might help: https://steemit.com/steemit/@andrarchy/steemit-s-real-diabolical-plan-for-world-domination