1. Don't do anything more to your tank.
2. Seek advice from some of the people on here, a lot of them were where you are at, and have been doing this for a long time. Nothing better than getting advice from people who do this and have experience.
3. Get a FEW books, not just one. You will constantly use them throughout your whole SWA life. I just got the Conscientious Marine Aquarist, and it is an excellent first starter book. It opened my eyes up to a few things I wasn't understanding.
4. Also, since I have been looking at several boards, and see the same questions, over and over. Before you ask questions, do a search and see if someone has asked that question before, and read the replies they got to their question. And if you don't understand any of the replies you read, then ask that question again.
5. Know your tank. Everyone will always ask you, what's your tank setup, what is your equipment, what are your water levels, what do you have in it, etc. Keep a log of everything, and be ready to provide info of your SWA.
If I am off my rock and out of order here, just let me know.