Here is the link to my blog which is having more than 30 K visitors Just have a look and give me a feed back as I want to improve further https://abhishekkar1992.wordpress.com
The very first thing I would do is find someway to get an email list on there. If you really have 30k visitors and you are not collecting somme kind of email list you are really missing out.
You should take CaliStyle's advice and get an email list started. Also, consider running an email campaign in which you curate at least five articles from blogs similar to your own. List each link in this newsletter and summarize it, inject some of your own viewpoints and personality. What you will be doing is building an audience asset.
Wow that's a lot of viewers. I'd add more content, your articles or reviews are pretty short. But I guess if it's working for you, keep it up and screw what I say. @CaliStyle is right, you need to collect those emails from your many visitors. Use that to make more money.
I would dump the site and transfer everything over to a self hosted wordpress.org blog. If you try to monetize a Wordpress.com site, it will only be a matter of time before they delete it.