Welcome to the platform. Write about what you know and are passionate about. For most people it will take a while before they really start making money on the site. But if you keep posting daily and interact and comment on other people's post you will slowly start to see your rewards increase.
People come for the rewards, but soon realize it takes a while but they stick around for the community and before long those rewards users talk about start to come in. Once again Welcome to the platform. Have fun and be yourself.