My post won’t budge in the SERPs?

I've got a term that gets around 2k search terms a month. The on-page SEO is perfect but it's been stuck on page 6.

I have another post on my site that ranked for this term (#3) so I moved/deleted the first paragraph of the ranking post to my problem post in hopes it would help google rank the correct page. Still no luck, my ranking post got taken off the first page and no movement on my other page so I'm not too sure what's up.

My site is about 3.5months old, but my other post I wasn't…

My post won't budge in the SERPs?