Dear @pedrobrito2004
Yes, you are not contemplating the best of this platform, that in one way or another you will be paid for those publications, since you mention that they are of your classes that will be great for you and for your students, you just have to make the reference that they are originals of yours and place the address of the blog where you have it published.
I also used to publish by Wordpress
hahaha! You are right that I was forgetting a very important detail, after all, the other networks capitalize on the content we generate without sharing with small-scale content creators.