hi here is what i know:
1. google doesn't care what you call it, for google its all "a page with text"
2. otherwise if you are going to design a new site i suggest you the same structure i use on my snoring site below which is your best articles for which you also try to rank for in google as static pages and posts as all other articles on exactly that same topic supporting your main article. posts can also be less research, long or short, whatever.
3. lastly if you only made 25-40 from few years from adsense than you simply did not do enough reading and learning on how to do online business or you simply did very little work. 25-40 can be achieved even in less than 1 month or lets call it few months for the average person still working every day.
I can coach you if you want for free as a way of giving back to the community.