There is nothing wrong with your writing, I quite like the style and flow, but I have found my score has gone up by leaps and bounds since I started answering questions.
It seems that the more time you spend as part of the community, the more you get out of it.
I can't say that I'm likely to get rich from having signed up to AdSence, but hey, you gotta start somewhere.
Keep on going, and 85 is no mean score. There are many here who would love that score.