How can I learn how to write poetry?

Roses are red
Violets are blue
Fuck Edgar Allan Poe
This is the best I can do.

I am not interested in poetry that does not ryme, I only like the kind that rymes. I have a fairly extensive vocabulary, but I don’t really know much about how to structure poetry.

I know I can structure it as I did above (A,B,C,B) and I know a few other structures, such as (A,B,A,B… A,C,B,C), and a few others, but when it comes to creating a poem, it is very hard work.

I know how to think up what I want to say, the message so to speak, and I know how to make little lists of all possible words I could use, and cross refference the ryming ones, but I have still never created a poem, just short silly rhymes.

How can I learn how to create poetry?