So i started running a SEO campaign for a locksmith business, i have been reading a lot of guide about ON page editing, the website is on wordpress and i have partial control over the pages, im not trying to compite in a very high keywords values, and only in local area, i got the website to the first 2 pages but since then it went down to the 3rd page on 2 of the main search keywords there is no news or updates i can really do on locksmith world at least not daily or weekly theres nothing to update, i have been keyword researcing and im changing words and researcing every once in a few days if the words change,using google tools.i got Moz crawl diagnostic results and im getting errors that i think doesnt exist, for example Too many on-page links on pages with no links at all,or title element too long when its not., most errors are Rel Canonical but i have no idea how to fix them on wordpress, also how many of you think meta description is worth writing? im getting possitive and negitive comments about it, last thing i want to say is, i got a 200$ monthly budget to SEO this website and would like to know where should i invest these 200$ every month to promote it to the first page,i am not looking for someone to do my work for me but for useful tips, i have thought about buying moz advance program for 100$ a month but not quiet sure if that what i even need. this locksmith campaign is the only one im running because its my own family business.. the website address is fastlocksmithdc.com