Writing Methods

Why is it so hard to write poems? I love reading about how poets come to write their poems, their thought-processes, what triggers them etc. I think I think too much about the process, I'm too self-conscious, too aware when I start writing. I've got this mad idea in my head that I want every poem I write to count, to be really meaningful to me, to tell me something. And because of this I struggle to write a poem just for the fun of it. It's counter-productive, this self-imposed pressure is immensely inconducive to writing. So I gather my images, page after page of groups of scenes that I try to find meaningful homes for. The images are the easy part, a walk by the river or in the gardens and the images come but not just nature description, images with real emotional weight. But finding the right narrative home, the story that these images come from is the real struggle. I'd love to know how everyone else writes, some people don't like to talk about their processes but the analytical part of me is greedy for detail about such things.