Advice needed

My desire to write creatively, and more poetically far outweighs my ability to actually put my thoughts on paper. I am looking for a writing routine that makes me much better at expressing my thoughts and feelings. What should I be doing? I also have plans to do some creative/poetic writing, the problem is that I have literally no clue where to start. The whole thing is daunting and overwhelming, and I feel sick even writing about it.