Learn Basic Spanish.
Your local library may have several different books or videos in Spanish. Go and check those items out and give them each an honest try.
Don’t take too much time off as you may feel you are losing what you learned. Just take a day or two off the maximum. Then review what you previously learned and test yourself. See where you feel strong and where you might need some extra time studying.
By following these three steps you can assure that you will first build a solid foundation by learning the basic building blocks for the Spanish language.