You're going to do really well. You've worked out that this is not Facebook. We all do that in our first few days. But we also work out it's so much more. I wrote few posts about beginners on Steemit, which you're welcome to read, but by no means obligated to. I've found that my creativity has been challenged and I've made some amazing friends in a few short weeks. And I'm loving it. So keep it real, write about the things you love and enjoy the journey.