HI
SEO and SERPs can very frustrating indeed. 5 minutes looking at your stats leads me to the conclusion that you need more external links. Moz is only reporting links from one site. You say you are clueless but you are not. You are relatively new to this aspect of business life and are trying to achieve progress on a low budget I suspect. Others on here may be able to spend a little more time and you could get help on other forums such as the Google Webmaster Tools forum. You should install GWT and Bing Webmaster tools.
Lastly, you should approach an SEO company for help. They will usually give a flavour of how they can help you alongside a quote - so you get help for free. They usually have semi-automated tools to help them do this.
Grahame