You didn't ruin your cycle, it just takes time and patience when starting out. You don't want to add anything live yet, try a dead shrimp to give the bacteria something to feed on. You will have some die off from the live rock as well which will in turn feed the system. The bacteria just takes time to develop and reproduce. How big is the tank? How much live rock? What is the substrate? also type of filter system your running? there are a lot of factors, but the main one is time to allow the system to mature to a level where it can support a bioload. But always stock small making gradual changes and continue to monitor your levels. Especially before you add any live stock. Ammonia and nitrite can be lethal, even nitrate can in high enough amounts. Hope this helps!