First of all you are up-voting like a bot , you should only up vote good content and comment , not just up-voteing, after reading the post if it deserve an up-vote.
second up-vote like crazy doesn't mean you will be paid like a crazy , you have the proof on your account.
this post will help you to more understand steemit : https://steemit.com/steemit/@ben99/your-posts-don-t-catch-a-whale-s-eye-on-steemit-what-you-should-do