It can be done. I went from never having had an aquarium before directly to a thriving SPS reef tank. It takes time to learn and plan before you execute. Most of the answers you'll find right here on Reef2Reef. Before I bought the first thing, I spent four to five months pouring over the forum with a notepad next to me, writing down what equipment I needed, how I wanted to build the system and mapping my steps. More important maybe than learning what to do was learning what NOT to do through other people's mistakes.
Use the "Watch Forum" tools to stay on top of unread posts in the forums that you can learn from and limit the overwhelming information that comes through here on a daily basis. I would watch the following forums to start with:
I would also browse the build threads of hobbyists who have similar-sized tanks as yours or the same type of goals. If you stay patient until you have a map of what you want to do, what equipment you need, and a good idea of how to go about it, you'll have a very good shot at being successful.
Lastly - ask questions! That's what we're here for. Good luck on your journey.