In Reading poetry, first read it slowly, give it your attention, like you do when you eat dinner, then read it slowly again a second time, with an open mind, third, read it again, this time, as you would read prose, it will now jump out at you.
Many poems are complex, and perhaps ambiguous, if they are too much for you, trash them (unless you want to suffer through them, then you are asking for pain, and may receive it).
Know the poet you are reading, his history will help you understand why he is writing as he is, his mind perhaps will come clearer to yours.
Get rid of your preconceptions (bias and so forth) as you read—enjoy the experience. If you like the poetry and not the poet, because of your prejudice, you’ve got an issue.