I was on first page of google for my keyword for the first month of having my website

Looks like you need to do a better job at trying to hide your keyword stuffing from Google.

Have a look at the screenshot below, look familiar?

 

did you build lots of backlinks with anchor text "orgeenic"? If you overdid it Google may have dropped you in the rankings.

 

do link building more and more to rank up your site.

 

Build pages to inner pages, not just home page to avoid the 60% links penalty. Have a variety of keywords, at least 4 for a homepage.