If you read back over your last week's worth of social media posts and nothing jumps out at you, catches your eye or pushes you to click-through, chances are the same thing is happening with your followers. 

Don't post for the sake of posting - instead, stay in the loop with what content interests and engages your followers/connections. Take note which of your posts were successful in starting conversations, and try to replicate them. If you're just spam-posting and getting likes or shares from bots, you're not making the most out of these platforms. While you should aim to post frequently, it's definitely quality over quantity in this case.