For those of you new to Steemit, you should check out this video to understand the fundamentals behind this platform that make it unique. For those of you that are not new, this is old info but as this video is from Steemit's official youtube channel, clicking on it and therefore registering a youtube view will help support Steemit, which you like and want to support so...
Beyond the info in this video, you basically create posts and get paid out in Steem 24 hours after your post is uploaded. You can then invest or convert that Steem however you wish. Voting is another valuable thing you can do, but I don't know enough to give you solid info on that. There is plenty more resources rapidly becoming available. I am quite new to it.