If you're looking for advice, I'd probably first figure out how everything works. You should probably start by experimenting with your user page or a sandbox page by using templates and infoboxes and see how they work. I'd probably start with the visual editor as it is more beginner-friendly since source editing requires you to have a bit of knowledge of how the coding works for this site.

Of course, you do also have places like Community Central to help out as well.