There are over 200 factors Google considers to rank sites. I've seen sites that are just published being ranked above sites with over 7 or more years in business. It all changes and their algorithm is always trying to guess what is the visitor looking for.
In my niche, there are 2 sites above me, ranked 2nd and 3rd, with no authority, no backlinks, no content, not a good design/page/service, etc, still they are STILL there.
The data Moz shows can give you a CLUE on how is your site performing, but it will be even better if you see their data as trends. For example, you start to create new content daily, GOOD, interesting content, you then see a boost in your rankings, still not getting the place you think you deserve, don't worry, that trend shows you that creating content is working, keep doing it.
You can also ask for some help in the Google Webmaster Forums, the guys there are usually rude, but almost always right 
Hope that helps.