Integrating Wordpress into existing GoDaddy hosting: what's the next step?

-Here's the deal: I have a GoDaddy domain and purchased hosting a few months ago. My coding isn't that good, though, and someone told me I could install Wordpress as an application and basically build my website that way.



I've installed the app (took a few hours to "create the database," but it finished), but there's nothing telling me what to do next! The closest thing to a next step I saw was to pick a pre-made template and pay $45 for it. I can design my own, really, or at least would like a free one. I've already paid for the hosting, so what happens now? Also, I was told I could easily add plug-ins, like a lightbox gallery. Don't know how to do that either.



If it matters, it's for a graphic design website--to show off my portfolio and the like, not a blog.



All help is appreciated!I have video tutorial on how to use WordPress that is free for members and you can always contact me if you need help