As noob I'll make an effort to help. You want the following to happen in order.
Ammonia spike-----(bacteria eats ammonia and reproduces)--------then a spike in Nitrite----(bacteria eats Nitrite and reproduces)-----then a you'll have a Nitrate spike. Thats when you'll do a water change. Most people add a shrimp in for the ammonia spike, but it can be done in different ways. Buying live rock is another way. You actually want the bacteria to form so that when you have fish or other things in your tank that poop(ammonia), you'll have the natural bacteria to keep your tank clean.
So, wait for the drop in ammonia and drop in trites before you do anything. Good luck
Cheers
Nick