link wheel - what am i doing wrong?

i use this tactic to raise my site's placement on google. first i'll tell you what I've done so far. and then i'll want your advices

what I've done so far:
I've made 9 blogs from wordpress etc. i am posting an article a day for a month. all my articles are the same. this means when i posted an article on one of my blogs, i post the same on the others. i post different articles everyday. i write my articles. none of them is copy.

i use a method for linking. i give 7 links in my every article. 3 of them to my main site. and 1 of these 3 is like site . com/article and the others like site . com. other 3 of 7 to the next blog. 1 of these like blog2 . com/article and others like blog2 . com. and finally last one is to the blog itself. this means if i wrote this article on blog1 . com this link goes to blog1 . com/article

and i wrote 9 tags to my every article. all of them are the same all the time

i guess i am doing something wrong! my page was no.18 on google. now no.24
what should i do to fix this? what is wrong with my link wheel?

is this situation temporary or my site's position will decrease unless i give up writing?