User blog:Nowie Sheep/...So....exactly how do I do this?

Hiya umm...well this is a tad bit embarrasing, making a whole blog just for one question however, I think (If this actually does get answered) it will help out probably most of the wikia. Anyways, I'm going to try and skip the specifics and just go onto the main question: HOW DO YOU MAKE A CUSTOM INFOBOX/ TEMPLATE

Quite frankly, Wikipedia has been no help at all, since it tell me to do this massive list onto a source coding and, I still get this: <

So uhh...yeah...is there something that I'm missing or is it that only admins can make templates?