The first thing that's hard to figure out when you first come across poetry is working out what you like.
The second thing is finding out, with any sort of reliability who else you might like. If you're lucky you might have a community of poets nearby, or a mentor, or a friend who knows a bit more than you.
If you have to rely on the internet its going to take some time and reading, you might go down a few overgrown paths.
Then comes Poet Tips, a crowd sourced recommendation engine. Try it out here. It's best to view the video above first, though the site is pretty intuitive.