Get grounded, get physical. Reflect on what you've made real, give those things the attention of your hands. Touch your art, water your plants, hug your kids. Then plant the seeds for new creations: sketch, write, make plans to meet with collaborators later this month.
Use all that retrograde energy to through your clothes and books and sort out what you really want to see and use in your day-to-day physical life.
Take extra good care of your body. Get it outside, lie on the grass, climb, run, hike. Eat root vegetables and new spring greens. Anytime you feel tough emotions, get into your body. This is the best time to really feel the really real way your body and spirit work together.