Do every little romantic gesture you can. When my dad proposed to his girlfriend, he brought her wine tasting, horseback riding, took a walk on the beach and then proposed to her at dinner. Try giving her the best and most romantic day possible. It's really great that you feel this way and your wife is a lucky woman.
You're a poet and you didn't even know it! XD okay well you should just let all your emotions come out in words to her, something sweet will probably come out and if you're awkward she might just think it's cute anyways. Then kiss her.