First try to put links by commenting in good quality blog which help you get increased the crawling rate of your blog then further what work you will do will see by google and your will get ranking do not put in the blogs which post has not updated from months or years it give your blog also downfall graph.
To increase the ranking of your blog,
You need to create some innovative and unique content for different
postings in off page optimization..
Your links should be connected in good quality blog and
try to get more back links from good quality yielding sites..