If you think of exercise as a 60-minute commitment 3 times a week at the gym you're missing the point completely. If you think that going on a diet has something to do with nutrition you don't see the forest through the trees. It is a lifestyle. I know it sounds cliche but you have to find things you love to do.
Besides the actual reading in class of many poems I would suggest you do two things: first while teaching everything you can and keeping free of it teach that poetry is a mode of discourse that differs from logical exposition.