In addition to esmi’s response, I’d like to point out that if you’re very new to this type of thing, installing WordPress from scratch may be a little overwhelming. If you’re not much of a documentation reader, I suggest searching youtube for “manual wordpress install” to find a video that shows you how to run through the install. It can definitely help get you out of the dark.
Let me guide you through this, we’ll get it going.
Do you have a web hosting account already? Such as bluehost, mediatemple, inmotion hosting? If so, respond back with your host and I’ll dig up some more information for you.