firs read the post as an end user. so you will come to know where you want to get improved, then Use all the social media platforms to make it more social put a social share button. and also check the heading and contents match and it catches the audience.
Try Reddit, I've gotten thousands of visitors from that social network and it's good for backlinks. Find the right section, subreddit it's called, that's relevant to wordpress, and engage in conversation. You can post your links as well, just position it as a helpful guide for wordpress users or something similar.
1) Your site and content should be interesting to read. 2) put some video tutorials (youtube generates tons of free traffic) 3) advertise on facebook/twitter 4) post on forums (always use your site in signature)
relax.. find some method that suit you. One day you will find it. Not all method you need to follow. Some method take time.