Welcome to the board. I understand that getting a diagnosis and all can leave you reeling. We have a good mix of those who are new, as yourself, and those who are "old hands". The moderators here are also superb with an excellent mix of knowledge and the ability to find whatever you may need for answers.
Taking care of your own health may be one of the lessons we have the hardest time to master. Yet, it is one of the most vital you will find. Rest, eat well, take your medications as prescribed, and watching your sun exposure, will go a long way to helping you to survive this not so welcome companion.
As other posters have said, ask away on your questions. In these early months, you may find that keeping a journal of your feelings and symptoms will help you and your doctor to focus on the issues which are really important. Take your questions and journal to your doctor's appts with you. Never hesitate to ask questions. It is how you will learn to live and survive. And yes, just because you have lupus, does not mean that lupus has to have you. There is life in, with, and through lupus. It is just a different way of living.
It is not uncommon to be confused for a long time and even anger that this has happened to you. It can also be a relief that now you know what has been wrong and that you are not crazy and never have been. We are here if you need to vent, have questions, or just need to talk to someone.
I hope that you are handling the news well and doing well also. We have a chat room and I hope to see you in there sometime.