I'm sorry to be blunt, but too many people in this community are "Yes" people, and will give you false hope because they want to be nice.
I am going to be nice, by trying to stop you from wasting your time and money.
When I go to Google, I'm looking for something - and that something is almost never going to involve keywords from one of your poems. If by some stroke of luck, my keywords match up with your poem, I still won't visit your site - because I am looking for information...not poetry.
Write your poetry, by all means if it is your outlet, then you need to do it. But the time and effort you spend trying to keep your blog up to date...you would make far more money mowing lawns with that time than you will updating that blog.
I am not trying to shoot you down, I'm being honest. Monetizing a blog is HARD. Making money off of poetry is even MORE difficult. Combining the two is like trying to get a degree in medical sciences then using that degree to try and get a job at NASA as an astrophysicist.